リクルートが展開する機械学習API「A3RT」と基盤としてのクラウド活用について

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτ͕ల։͢Δػցֶश"1*ʮ"35ʯͱ ج൫ͱͯ͠ͷΫϥ΢υ׆༻ʹ͍ͭͯ גࣜձࣾϦΫϧʔτςΫϊϩδʔζϏοάσʔλ෦ϓϩμΫτ։ൃάϧʔϓ Ԟా༟थɾদాప໵

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ϓϩϑΟʔϧ w Ԟా༟थ w ಸྑઌ୺Պֶٕज़େֶӃେֶଔ w όΠΦΠϯϑΥϚςΟΫε Ҩ఻ࢠղੳ w ϦΫϧʔτςΫϊϩδʔζͷॴଐ w Ϗοάσʔλ෦ϏοάσʔλਓࡐྖҬάϧʔϓ w Ϗοάσʔλ෦ϓϩμΫτ։ൃάϧʔϓ w ϦΫϧʔτςΫϊϩδʔζͰͷ໾ׂ w ػցֶश΍ਓ޻஌ೳ"*Λ׆༻ͨ͠ϓϩμΫτ։ൃ ࣗݾ঺հ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ϦΫϧʔτ͸ଟछଟ༷ͳαʔϏεΛఏڙ͍ͯ͠·͢ w ࡶࢽ΍ωοτϝσΟΞͳͲଟ༷ͳαʔϏεΛఏڙ͍ͯ͠·͢ ϦΫϧʔτͱ͍͏ձࣾʹ͍ͭͯ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτςΫϊϩδʔζͷཱͪҐஔ U D D BS R H S S w ϦΫϧʔτςΫϊϩδʔζ͸ɺϦΫϧʔτάϧʔϓͷ*5ɾωοτϚʔέςΟϯάྖҬ ͷςΫϊϩδʔ։ൃΛ୲͏ձࣾ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE & PM T D T T B PM T R T B R T I TB I TB R T B T I TB PM T B I TB JD TB JD TB B Ϗοάσʔλղੳ෦໳ͷ૊৫ମ੍ʹ͍ͭͯ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE Ϗοάσʔλ෦ʹ͓͚ΔϓϩμΫτ 10 5 1 0 ., 1 .,0 2 1. 22 1 0 . . . oC y vA H L T L e d a s u r th g 5i d R l c p n p a 9 . .,. . ,, 1 e d AC h c igh C e R T L 2 0

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE Ϗοάσʔλ෦ʹ͓͚ΔϓϩμΫτ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ϦΫϧʔτͷػցֶशʹΑΔιϦϡʔγϣϯ׆༻ͷ ෑډΛԼ͛ɺࣄۀͷαʔϏεͷՁ஋ΛߴΊΔͨΊͷ ൚༻తͳػցֶश"1*αʔϏε܈

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ࣾ಺֤αʔϏεʹରͯ͠ػցֶशιϦϡʔγϣϯΛఏڙ w ϨίϝϯυɾਪનγεςϜɺը૾ೝࣝɺݪߘੜ੒ɺݪߘߍӾɺจষཁ໿ɺԻ੠ೝ ࣝɺର࿩ϘοτɺϢʔβଐੑਪఆɺʜʜ "35 Ξʔτ ʹؚ·ΕΔ֤ػೳ

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"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹϨίϝϯυɾਪન"1* w ར༻͢ΔσʔλΛఆܕԽ͠Ϩίϝϯυͷಋೖ࣌ؒ΍ίετΛ୹ॖ w ͜Ε·ͰݸผαʔϏεʹಛԽͯ͠࡞ΒΕ͍ͯͨϨίϝϯυػೳ ͷ։ൃΛɺ౷Ұతʹѻ͏σʔλεΩʔϜΛࡦఆͯ͠ن֨Խ w ಋೖোนΛݮΒͯ͠ͲͷΑ͏ͳαʔϏεͰ΋ؾܰʹಋೖͰ͖Δ Α͏ʹαϙʔτ աڈͷϢʔβཤྺʹج͍ͮͨϨίϝϯυߏஙͷࣗಈԽ - -

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"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹɹɹը૾ղੳ"1* w σΟʔϓϥʔχϯάͰ࠷΋੒ޭͨ͠෼໺ w ೥ͷը૾ೝࣝίϯϖ *-473$ ʹ͓ ͚ΔύϥμΠϜγϑτҎޙͷੈք w ࣗಈӡసͳͲͷجૅͱͳΔେ੾ͳٕज़ w ࣮ϓϩμΫτ΁ͷԠ༻ྫ w ෺ମࣝผ w ෆద੾ը૾ݕग़ w λά෇༩ w ը૾ೝࣝʹΑΔϨίϝϯυ w 0$3ʢจࣈಡΈऔΓʣ 1 / 0 3%# 4*" &- 30% 10% 60% 50, !) 2+ &- .'Deep Learning ( CNN1)$ ൚༻తͳϩδοΫͰ໨త͝ͱʹಛԽͨ͠ը૾ղੳॲཧ

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"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹɹݪߘࣗಈੜ੒"1* େྔͷݪߘ৘ใΛֶशͯ͠ɺػցʹΑΔݪߘͷࣗಈ࡞੒ w ֶशͨ͠ݪߘʹ͍ۙจষΛ࡞੒ɾαδΣετ w ͳΔ΂ࣗ͘વͳ೔ຊޠͰɺֶशͨ͠ݪߘʹ͍ۙจষΛੜ੒ w ݪߘ࡞੒ऀͷෛ୲ݮ΍࡞ۀޮ཰Խɺख़࿅ऀͱಉ͡Α͏ͳจষΛ ৽ਓ͕ॻ͚ΔΑ͏ͳαϙʔτΛػց͕୲͏

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"MM3JHIU3FTFSWFE$PQZSJHIU D 3FDSVJU5FDIOPMPHJFT$P -UE ɹɹɹɹݪߘߍӾ"1* ϧʔϧϕʔεͱػցֶशͷϋΠϒϦουʹΑΔݪߘߍӾ w ϧʔϧϕʔεʹΑΔνΣοΫ w ೔෇ͱ༵೔ͷ੔߹ੑ w ॅॴͷؒҧ͍ w /(ϫʔυ w ػցֶशʹΑΔνΣοΫ w ׽ࣈ΍ॿࢺͳͲͷޡࣈ୤ࣈ w ࠩผදݱͱͳΓ͏Δදݱ w ૊Έ߹ΘͤʹΑΔ/(දݱ w ޡࣈ୤ࣈ΍ෆద੾දݱͷࣗಈݕग़ w 8FCܝࡌݪߘͷߍӾʹ͔͔Δ޻਺࣌ؒΛ࡟ݮ͢Δ͜ͱͰɺ ࠓͷݪߘ࡞੒ମ੍Ͱѻ͏͜ͱͷͰ͖Δ૯ྔΛ૿΍͢ ʮࠃຽ͸੫ۚΛऩΊΔʯ ʮೲΊΔʯͰ͸ ͳ͍Ͱ͔͢ʁ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE "1*ʹΑΔޮ཰Խ API API API w ൚༻Խ w Ϟσϧ΍ٕज़Λ൚༻Խ͠ڞ༗ Ͱ͖ΔΑ͏ʹ͢Δ w ͦΕͧΕͷࣄۀσʔλͷಛੑ ʹ߹Θͤͨνϡʔχϯά͸ඞ ཁͱͳΔ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE 1VCMJD"1*ͱͯࣾ͠֎ʹެ։ IUUQTBSUSFDSVJUUFDIDPKQ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w 1VCMJD"1*ࣾ಺Ͱ஝ੵٕͨ͠ज़ΛແঈͰ֎෦ެ։ w ҰൠϢʔβͷํ͕ར༻Ͱ͖ΔΑ͏ͳٕज़Λز͔ͭ બग़͠ɺ֎෦༻ʹνϡʔχϯά্ͨ͠Ͱఏڙ w ఏڙ͢Δػೳछྨ w 5FYU$MBTTJpDBUJPO"1*ɿςΩετ෼ྨ w 5FYU4VHHFTU"1*ɿςΩετੜ੒αδΣετ w 1SPPGSFBEJOH"1*ɿݪߘߍӾ w 5BML"1*ɿνϟοτϘοτ w -JTUJOH"1*ɿϨίϝϯυ w *NBHF*OqVFODF"1*ɿը૾ೝࣝ 1VCMJD"1*ʹ͍ͭͯ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE w ظ଴ͱ໨త w ଟछଟ༷ͳۀछɺଟ͘ͷར༻ऀʹ࢖͍ͬͯͨͩ͘͜ͱʹΑΔϑΟʔυόοΫ w ΦʔϓϯΠϊϕʔγϣϯ w ۙ೥ͷػցֶशΛऔΓר͘ϓϩμΫτ͸ෳࡶԽˠ୯ҰͷػೳΛෳ਺૊Έ߹Θͤͯ ෳࡶͳ࢓૊ΈΛ࣮ݱ͢Δ͜ͱ͕ඞཁ w ը૾ೝࣝ͢Δ͚ͩɺจষ෼ྨ͢Δ͚ͩͰ͸ෆे෼ w طଘͷγεςϜͱͲͷΑ͏ʹ༥߹ͤ͞Δ͔ɺػցֶशͰ࣮ݱͰ͖ͳ͍෦෼Λิ ͏͔ w ͦΕͧΕͷػೳΛ͢΂ͯࣗલͰ༻ҙ͢ΔͷͰ͸ͳ͘ɺطʹଘࡏ͢Δ"1*Λ׆༻͢Δ ͜ͱͰɺૉૣ͍։ൃ͕ՄೳʹͳΔ 1VCMJD"1*

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE "35ج൫ͰͷΫϥ΢υ׆༻ "35ͷཪଆͷ࿩

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ࣗݾ঺հ দాప໵ UFUTVZBN!SSFDSVJUDPKQ લ৬ʢʙʣ /8ΩϟϦΞ3%૊৫ w Ϋϥ΢υ w Ϗοάσʔλ ݱ৬ʢʙʣ w )BEPPQج൫ӡ༻ w Ϋϥ΢υϏοάσʔλج൫։ൃ w "35ΠϯϑϥΦʔφʔ FUD

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ΠϯϑϥΦʔφʔͷ࢓ࣄ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ΠϯϑϥΦʔφʔͷ࢓ࣄ ʹ "35ͷΠϯϑϥΛ͍͍ײ͡ʹ͢Δ w w w w

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͍͍ײ͡ͷΠϯϑϥ ҆ఆͯ͠Քಇ͠ଓ͚Δ εέʔϥϏϦςΟ͕͋Δ ൚༻తʹར༻Ͱ͖Δ ίετ͕͍҆ ։ൃ͠қ͍ ͳΜ͔ΠέͯΔ FUD

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE "35ΠϯϑϥʹಛʹٻΊΒΕΔ΋ͷ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE "35ΠϯϑϥʹٻΊΒΕΔ΋ͷ ͙͢࢖͑Δ ܁Γฦ͠ ࢖͑Δ ࣗ༝ͳαΠζͰ ࢖͑Δ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͙͢࢖͑Δ ܁Γฦ͠ ࢖͑Δ ࣗ༝ͳαΠζͰ ࢖͑Δ w طଘϓϩμΫτͷޮՌΛૣ͘ݕূ͍ͨ͠ w ৽͍͠ϓϩμΫτΛૣ͘࡞Γ͍ͨ ΞΠσΞΛૣ͘ࢼ͍ͨ͠

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͙͢࢖͑Δ ܁Γฦ͠ ࢖͑Δ ࣗ༝ͳαΠζͰ ࢖͑Δ w ग़དྷΔݶΓԣల։͢Δ w ։ൃɾνϡʔχϯάΛૉૣ͘ޮ཰Α͘ճ͢ ؀ڥߏஙʹ͔͚ΔύϫʔΛݮΒ͍ͨ͠

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͙͢࢖͑Δ ܁Γฦ͠ ࢖͑Δ ࣗ༝ͳαΠζͰ ࢖͑Δ w ࢖͍ํʹ߹ͬͨɺͪΐ͏Ͳ͍͍αΠζ͕΄͍͠ w ܭࢉࢿݯΛ޷͖ͳαΠζͰ࢖͍͍ͨ ཉ͍͠Ϧιʔεྔ͚ͩௐୡ͍ͨ͠

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͙͢࢖͍͍ͨ ܁Γฦ͠ ࢖͍͍ͨ ࣗ༝ͳαΠζͰ ࢖͍͍ͨ "35ͷཁٻ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͙͢࢖͍͍ͨ ܁Γฦ͠ ࢖͍͍ͨ ࣗ༝ͳαΠζͰ ࢖͍͍ͨ Ϋϥ΢υͷ׆༻ "35ͷཁٻ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ͙͢࢖͍͍ͨ ܁Γฦ͠ ࢖͍͍ͨ ࣗ༝ͳαΠζͰ ࢖͍͍ͨ w ௐୡɾߏஙϦʔυλΠϜͷ୹ॖ w ࢖͍ࣺͯɾ؆୯ʹίϐʔͰ͖Δ؀ڥ w εέʔϥϏϦςΟͷ֬อ w ΦϯσϚϯυͳར༻ "35ͷཁٻ Ϋϥ΢υͰಘΒΕΔϝϦοτʢҰൠ࿦ʣ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ࣾ಺ηΩϡϦςΟ ϙϦγʔରԠ طଘ؀ڥͱͷ σʔλ࿈ܞ Ϋϥ΢υ؀ڥͰߏங͢Δࡍͷ՝୊

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ࣾ಺ηΩϡϦςΟ ϙϦγʔରԠ طଘ؀ڥͱͷ σʔλ࿈ܞ Ϋϥ΢υ؀ڥͰߏங͢Δࡍͷ՝୊ w ࣗࣾηΩϡϦςΟཁ݅Λશͯຬͨͨ͠ػೳ܊ w طʹཱ֬͞Εͨӡ༻ମ੍ ˞Ϋϥ΢υαʔϏεࣗମͷηΩϡϦςΟ͕؁͍ͱ͍͏Θ͚Ͱ͸ͳ͍

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ࣾ಺ηΩϡϦςΟ ϙϦγʔରԠ طଘ؀ڥͱͷ σʔλ࿈ܞ Ϋϥ΢υ؀ڥͰߏங͢Δࡍͷ՝୊ w ༷ʑͳ؀ڥʹ͋Δݩσʔλͷऩूίετ w ઐ༻ઢͷӡ༻ίετ

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$PQZSJHIU3FDSVJU5FDIOPMPHJFT$P -UE"MM3JHIUT3FTFSWFE ࣾ಺ηΩϡϦςΟ ϙϦγʔରԠ طଘ؀ڥͱͷ σʔλ࿈ܞ Ϋϥ΢υ؀ڥͰߏங͢Δࡍͷ՝୊ Ϋϥ΢υϕϯμʔͱ࿈ܞ͠ͳ͕Βઈࢍ੔උத

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1BB4׆༻ʹΑΔ ӡ༻ෛՙܰݮ έʔευϦϒϯͳ Πϯϑϥࣗ༝౓૿ ͦͷଞͷϝϦοτ

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'SPOUFOE "1* 1SPEVDU" "1* 1SPEVDU# "1* 1SPEVDU; "1* ʜ w ΞΫηε੍ޚ w ϩάऩू w ڞ௨ػೳʢϑΝΠϧΞοϓϩʔυFUDʣ w ϓϩμΫτݻ༗ػೳ "1*Ͱ࿈ܞ

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'SPOUFOE"1* ॲཧϩδοΫ "QQ&OHJOF "1*,FZ؅ཧ $MPVE%BUBTUPSF 4UBDLESJWFS -PHHJOH #JH2VFSZ ϩά෼ੳ 1BB4ܥαʔϏε׆༻ w ׬શΦʔτεέʔϧ w Մ༻ੑࣗಈ୲อ w ج൫ӡ༻ෆཁ 1SPEVDU" "1* 1SPEVDU# "1* 1SPEVDU; "1* ʜ

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1BB4׆༻ʹΑΔ ӡ༻ෛՙܰݮ έʔευϦϒϯͳ Πϯϑϥࣗ༝౓૿ w Ϛωʔδ͞ΕͨΦʔτεέʔϧ w ࣗಈతʹ୲อ͞ΕΔՄ༻ੑ w ಛԽͨ͠ػೳɾύϑΥʔϚϯε ͦͷଞͷϝϦοτ

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8FC"QQ %# ֶश (16 ετϨʔδ ಛ௃ʹԠͯ͡αʔϏεબఆ w ՝ۚମܥ w ҆ఆੑɺ࣮੷ w ػೳ $16 #BDLFOE"1*

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1BB4׆༻ʹΑΔ ӡ༻ෛՙܰݮ έʔευϦϒϯͳ Πϯϑϥࣗ༝౓૿ w ΍Γ͍ͨ͜ͱʹԠͯ͡ɺ࠷దͳαʔϏεΛબ୒ w τϨϯυ΍ঢ়گʹΑͬͯɺબͼଓ͚ΒΕΔ؀ڥ ͦͷଞͷϝϦοτ

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Ϋϥ΢υΛ࢖ͬͯಘΒΕΔϝϦοτ Ϋϥ΢υΛ࢖Θͳ͍ϝϦοτ ʼ

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