| basis | (noun) the fundamental assumptions from which something is begun or developed or calculated or explained | Synonyms: base, cornerstone, foundation, fundament, groundwork |
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| (noun) a relation that provides the foundation for something | Synonyms: footing, ground |
| (noun) the most important or necessary part of something | Synonyms: base |
| basket | (noun) a score in basketball made by throwing the ball through the hoop | Synonyms: field goal |
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| (noun) a container that is usually woven and has handles | Synonyms: handbasket |
| (noun) horizontal circular metal hoop supporting a net through which players try to throw the basketball | Synonyms: basketball hoop, hoop |
| (noun) the quantity contained in a basket | Synonyms: basketful |
| basketball | (noun) a game played on a court by two opposing teams of 5 players; points are scored by throwing the ball through an elevated horizontal hoop | Synonyms: basketball game, hoops |
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| (noun) an inflated ball used in playing basketball | - |
| basketeer | (noun) an athlete who plays basketball | Synonyms: basketball player, cager |
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| basketful | (noun) the quantity contained in a basket | Synonyms: basket |
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| basketmaker | (noun) someone skilled in weaving baskets | Synonyms: basketweaver |
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| basketry | (noun) the craft of basket making | - |
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| basketweaver | (noun) someone skilled in weaving baskets | Synonyms: basketmaker |
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| basophil | (noun) a leukocyte with basophilic granules easily stained by basic stains | Synonyms: basophile |
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| basophile | (noun) a leukocyte with basophilic granules easily stained by basic stains | Synonyms: basophil |
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| basophilia | (noun) the tendency of cells to stain with basic dyes | - |
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| bass | (noun) the member with the lowest range of a family of musical instruments | - |
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| (noun) the lowest part of the musical range | - |
| (noun) the lowest adult male singing voice | Synonyms: bass voice, basso |
| (noun) the lowest part in polyphonic music | Synonyms: bass part |
| (noun) an adult male singer with the lowest voice | Synonyms: basso |
| (noun) nontechnical name for any of numerous edible marine and freshwater spiny-finned fishes | - |
| (noun) any of various North American freshwater fish with lean flesh (especially of the genus Micropterus) | Synonyms: freshwater bass |
| (noun) the lean flesh of a saltwater fish of the family Serranidae | Synonyms: sea bass |
| bassarisk | (noun) raccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings | Synonyms: Bassariscus astutus, cacomistle, cacomixle, civet cat, coon cat, miner's cat, raccoon fox, ring-tailed cat, ringtail |
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| basset | (noun) smooth-haired breed of hound with short legs and long ears | Synonyms: basset hound |
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| bassine | (noun) coarse leaf fiber from palmyra palms used in making brushes and brooms | - |
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| bassinet | (noun) a basket (usually hooded) used as a baby's bed | - |
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| (noun) a perambulator that resembles a bassinet | - |
| bassist | (noun) a musician who play the bass viol | - |
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| basso | (noun) the lowest adult male singing voice | Synonyms: bass, bass voice |
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| (noun) an adult male singer with the lowest voice | Synonyms: bass |
| bassoon | (noun) a double-reed instrument; the tenor of the oboe family | - |
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| bassoonist | (noun) a musician who plays the bassoon | - |
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| basswood | (noun) any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber | Synonyms: lime, lime tree, linden, linden tree |
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| (noun) soft light-colored wood of any of various linden trees; used in making crates and boxes and in carving and millwork | Synonyms: linden |
| bast | (noun) (botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes | Synonyms: phloem |
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| (noun) strong woody fibers obtained especially from the phloem of from various plants | Synonyms: bast fiber |
| bastard | (noun) derogatory term for a variation that is not genuine; something irregular or inferior or of dubious origin | Synonyms: mongrel |
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| (noun) insulting terms of address for people who are stupid or irritating or ridiculous | Synonyms: asshole, cocksucker, dickhead, mother fucker, motherfucker, prick, shit, SOB, son of a bitch, whoreson |
| (noun) the illegitimate offspring of unmarried parents | Synonyms: by-blow, illegitimate, illegitimate child, love child, whoreson |
| bastardisation | (noun) an act that debases or corrupts | Synonyms: bastardization |
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| bastardization | (noun) an act that debases or corrupts | Synonyms: bastardisation |
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| (noun) declaring or rendering bastard | - |
| bastardy | (noun) the status of being born to parents who were not married | Synonyms: bar sinister, illegitimacy |
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| baste | (noun) a loose temporary sewing stitch to hold layers of fabric together | Synonyms: basting, basting stitch, tacking |
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| baster | (noun) a tube with a rubber bulb used to take up and release melted fat or gravy in order to moisten roasting meat | - |
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| (noun) a sewer who fastens a garment with long loose stitches | Synonyms: tacker |
| (noun) a cook who bastes roasting meat with melted fat or gravy | - |
| bastille | (noun) a jail or prison (especially one that is run in a tyrannical manner) | - |
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| bastinado | (noun) a form of torture in which the soles of the feet are beaten with whips or cudgels | Synonyms: falanga |
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| (noun) a cudgel used to give someone a beating on the soles of the feet | - |
| basting | (noun) moistening a roast as it is cooking | - |
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| (noun) a loose temporary sewing stitch to hold layers of fabric together | Synonyms: baste, basting stitch, tacking |
| bastion | (noun) projecting part of a rampart or other fortification | - |
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| (noun) a stronghold into which people could go for shelter during a battle | Synonyms: citadel |
| (noun) a group that defends a principle | - |
| bastnaesite | (noun) a yellow-to-brown mineral that is a source of rare earth elements | Synonyms: bastnasite |
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| bastnasite | (noun) a yellow-to-brown mineral that is a source of rare earth elements | Synonyms: bastnaesite |
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| basuco | (noun) low-grade cocaine mixed with coca paste and cannabis | - |
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| beanfeast | (noun) an annual dinner party given by an employer for the employees | - |
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| beast | (noun) a living organism characterized by voluntary movement | Synonyms: animal, animate being, brute, creature, fauna |
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| (noun) a cruelly rapacious person | Synonyms: brute, savage, wildcat, wolf |
| beastliness | (noun) unpleasant nastiness; used especially of nasty weather | - |
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| (noun) the quality of being deliberately mean | Synonyms: meanness |
| bias | (noun) a partiality that prevents objective consideration of an issue or situation | Synonyms: preconception, prejudice |
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| (noun) a line or cut across a fabric that is not at right angles to a side of the fabric | Synonyms: diagonal |
| bilharziasis | (noun) an infestation with or a resulting infection caused by a parasite of the genus Schistosoma; common in the tropics and Far East; symptoms depend on the part of the body infected | Synonyms: bilharzia, schistosomiasis |
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| bioassay | (noun) appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard | Synonyms: bio-assay |
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| biomass | (noun) the total mass of living matter in a given unit area | - |
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| (noun) plant materials and animal waste used as fuel | - |
| bitumastic | (noun) a protective coating of asphalt and filter used on structural metals that are exposed to weathering | - |
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| blackwash | (noun) a wash that colors a surface black | - |
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| (noun) a mixture of calomel and limewater that is used on syphilitic sores | Synonyms: black lotion |
| (noun) an attack intended to ruin someone's reputation | Synonyms: assassination, character assassination |
| blasphemer | (noun) a person who speaks disrespectfully of sacred things | - |
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| blasphemy | (noun) blasphemous behavior; the act of depriving something of its sacred character | Synonyms: desecration, profanation, sacrilege |
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| (noun) blasphemous language (expressing disrespect for God or for something sacred) | - |
| blast | (noun) a very long fly ball | - |
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| (noun) intense adverse criticism | Synonyms: attack, fire, flack, flak |
| (noun) an explosion (as of dynamite) | - |
| (noun) a sudden very loud noise | Synonyms: bam, bang, clap, eruption |
| (noun) a highly pleasurable or exciting experience | Synonyms: good time |
| (noun) a strong current of air | Synonyms: blow, gust |
| blastema | (noun) a mass of undifferentiated cells from which an organ or body part develops | - |
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| blaster | (noun) a workman employed to blast with explosives | Synonyms: chargeman |
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| blastocele | (noun) the fluid-filled cavity inside a blastula | Synonyms: blastocoel, blastocoele, cleavage cavity, segmentation cavity |
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| blastocoel | (noun) the fluid-filled cavity inside a blastula | Synonyms: blastocele, blastocoele, cleavage cavity, segmentation cavity |
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| blastocoele | (noun) the fluid-filled cavity inside a blastula | Synonyms: blastocele, blastocoel, cleavage cavity, segmentation cavity |
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| blastocyst | (noun) the blastula of a placental mammal in which some differentiation of cells has occurred | Synonyms: blastodermic vessicle |
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| blastocyte | (noun) an undifferentiated embryonic cell | - |
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| blastocytoma | (noun) a tumor composed of immature undifferentiated cells | Synonyms: blastoma, embryonal carcinosarcoma |
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| blastoderm | (noun) a layer of cells on the inside of the blastula | Synonyms: blastodisc, germinal area, germinal disc |
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| blastodisc | (noun) a layer of cells on the inside of the blastula | Synonyms: blastoderm, germinal area, germinal disc |
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| blastoff | (noun) the launching of a missile or spacecraft to a specified destination | Synonyms: shot |
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| blastogenesis | (noun) theory that inherited characteristics are transmitted by germ plasm | - |
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| (noun) asexual reproduction by budding | - |
| blastoma | (noun) a tumor composed of immature undifferentiated cells | Synonyms: blastocytoma, embryonal carcinosarcoma |
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| blastomere | (noun) any cell resulting from cleavage of a fertilized egg | - |
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| blastomycete | (noun) any of various yeastlike budding fungi of the genus Blastomyces; cause disease in humans and other animals | - |
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| blastomycosis | (noun) any of several infections of the skin or mucous membrane caused by Blastomyces | - |
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| blastopore | (noun) the opening into the archenteron | - |
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| blastosphere | (noun) early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs | Synonyms: blastula |
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| blastula | (noun) early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs | Synonyms: blastosphere |
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| blepharospasm | (noun) spasm of the eyelid muscle resulting in closure of the eye | - |
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| bluegrass | (noun) a type of country music played at a rapid tempo on banjos and guitars | - |
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| (noun) any of various grasses of the genus Poa | Synonyms: blue grass |
| boast | (noun) speaking of yourself in superlatives | Synonyms: boasting, jactitation, self-praise |
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| boaster | (noun) a very boastful and talkative person | Synonyms: blowhard, braggart, bragger, line-shooter, vaunter |
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| boastfulness | (noun) outspoken conceit | Synonyms: vainglory |
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| boasting | (noun) speaking of yourself in superlatives | Synonyms: boast, jactitation, self-praise |
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| bombast | (noun) pompous or pretentious talk or writing | Synonyms: blah, claptrap, fustian, rant |
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| bookcase | (noun) a piece of furniture with shelves for storing books | - |
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| boreas | (noun) a wind that blows from the north | Synonyms: north wind, norther, northerly |
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| braincase | (noun) the part of the skull that encloses the brain | Synonyms: brainpan, cranium |
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| brainwashing | (noun) forcible indoctrination into a new set of attitudes and beliefs | - |
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| brashness | (noun) the trait of being rash and hasty | - |
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| (noun) tasteless showiness | Synonyms: flashiness, garishness, gaudiness, glitz, loudness, meretriciousness, tawdriness |
| brasier | (noun) large metal container in which coal or charcoal is burned; warms people who must stay outside for long times | Synonyms: brazier |
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| brass | (noun) a wind instrument that consists of a brass tube (usually of variable length) that is blown by means of a cup-shaped or funnel-shaped mouthpiece | Synonyms: brass instrument |
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| (noun) a memorial made of brass | Synonyms: memorial tablet, plaque |
| (noun) an ornament or utensil made of brass | - |
| (noun) impudent aggressiveness | Synonyms: boldness, cheek, face, nerve |
| (noun) the persons (or committees or departments etc.) who make up a body for the purpose of administering something | Synonyms: administration, establishment, governance, governing body, organisation, organization |
| (noun) the section of a band or orchestra that plays brass instruments | Synonyms: brass section |
| (noun) an alloy of copper and zinc | - |
| brassard | (noun) armor plate that protects the arm | - |
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| brassavola | (noun) any of various tropical American orchids with usually solitary fleshy leaves and showy white to green nocturnally fragrant blossoms solitary or in racemes of up to 7 | - |
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| brasserie | (noun) a small restaurant serving beer and wine as well as food; usually cheap | - |
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| brassie | (noun) (formerly) a golfing wood with a face more elevated than a driver but less than a spoon | - |
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| brassiere | (noun) an undergarment worn by women to support their breasts | Synonyms: bandeau, bra |
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| breadbasket | (noun) a basket for serving bread | - |
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| (noun) an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion | Synonyms: stomach, tum, tummy |
| (noun) a geographic region serving as the principal source of grain | - |
| breakfast | (noun) the first meal of the day (usually in the morning) | - |
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| breast | (noun) the part of an animal's body that corresponds to a person's chest | - |
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| (noun) either of two soft fleshy milk-secreting glandular organs on the chest of a woman | Synonyms: boob, bosom, knocker, tit, titty |
| (noun) the front of the trunk from the neck to the abdomen | Synonyms: chest |
| (noun) meat carved from the breast of a fowl | Synonyms: white meat |
| breastbone | (noun) the flat bone that articulates with the clavicles and the first seven pairs of ribs | Synonyms: sternum |
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| breastpin | (noun) a decorative pin worn by women | Synonyms: broach, brooch |
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| breastplate | (noun) armor plate that protects the chest; the front part of a cuirass | Synonyms: aegis, egis |
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| breaststroke | (noun) a swimming stroke; the arms are extended together in front of the head and swept back on either side accompanied by a frog kick | - |
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| breaststroker | (noun) someone who swims the breaststroke | - |
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| breastwork | (noun) fortification consisting of a low wall | Synonyms: parapet |
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| briefcase | (noun) a case with a handle; for carrying papers or files or books | - |
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| bristlegrass | (noun) grasses of grasslands and woodlands having large gracefully arching spikes with long bristles beneath each spikelet | Synonyms: bristle grass |
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| broadcast | (noun) message that is transmitted by radio or television | - |
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| (noun) a radio or television show | Synonyms: program, programme |
| broadcaster | (noun) a mechanical device for scattering something (seed or fertilizer or sand etc.) in all directions | Synonyms: spreader |
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| (noun) someone who broadcasts on radio or television | - |
| broadcasting | (noun) taking part in a radio or tv program | - |
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| (noun) a medium that disseminates via telecommunications | Synonyms: broadcast medium |
| bromegrass | (noun) any of various woodland and meadow grasses of the genus Bromus; native to temperate regions | Synonyms: brome |
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