upgrade E-KAR v1.0 to v1.1, with an improved English dataset

README.md

@@ -42,14 +42,16 @@ task_ids:
 
 ## Dataset Description
 
-- **Homepage:** https://jiangjiechen.github.io/publication/ekar/
+- **Homepage:** https://ekar-leaderboard.github.io
 - **Repository:** https://github.com/jiangjiechen/E-KAR
-- **Paper:** [E-KAR: A Benchmark for Rationalizing Natural Language Analogical Reasoning](https://arxiv.org/abs/2203.08480)
-- **Leaderboard:** https://ekar-leaderboard.github.io
+- **Paper:** [E-KAR: A Benchmark for Rationalizing Natural Language Analogical Reasoning](https://aclanthology.org/2022.findings-acl.311)
+- **Leaderboard:** https://eval.ai/web/challenges/challenge-page/1671/overview
 - **Point of Contact:** jjchen19@fudan.edu.cn
 
 ### Dataset Summary
 
+***New!***(9/18/2022) E-KAR `v1.1` is officially released (at the `main` branch), **with a higher-quality English dataset!** In `v1.1`, we further improve the Chinese-to-English translation quality of the English E-KAR, with over 600 problems and over 1,000 explanations manually adjusted. You can still find previous version (as in the paper) in the `v1.0` branch in the repo. For more information please refer to https://ekar-leaderboard.github.io.
+
 The ability to recognize analogies is fundamental to human cognition. Existing benchmarks to test word analogy do not reveal the underneath process of analogical reasoning of neural models. Holding the belief that models capable of reasoning should be right for the right reasons, we propose a first-of-its-kind Explainable Knowledge-intensive Analogical Reasoning benchmark (E-KAR). Our benchmark consists of 1,655 (in Chinese) and 1,251 (in English) problems sourced from the Civil Service Exams, which require intensive background knowledge to solve. More importantly, we design a free-text explanation scheme to explain whether an analogy should be drawn, and manually annotate them for each and every question and candidate answer. Empirical results suggest that this benchmark is very challenging for some state-of-the-art models for both explanation generation and analogical question answering tasks, which invites further research in this area.
 
 ### Supported Tasks and Leaderboards
@@ -117,10 +119,10 @@ This dataset is in English, which is translated from [its Chinese version](https
 
 ### Data Splits
 
-| name  |train|validation|test_blind|test_easy_blind|
-|:-----:|:---:|:--------:|:--:|:--:|
-|default| 870|       119| 262| 262 |
-|description|  |  | without query explanations (for HARD mode) | with query explanations (for EASY mode) |
+| name  |train|validation|test|
+|:-----:|:---:|:--------:|:--:|
+|default| 870|       119| 262|
+|description|  |  | blinded |
 
 ## Dataset Creation
 

test_blind.json

@@ -1,262 +0,0 @@
-{"id": "bb6b40-en", "question": "paddy:rice", "choices": {"label": ["A", "B", "C", "D"], "text": ["walnut:walnut crisp", "cotton:cotton seed", "watermelon:melon seeds", "peanut:peanut butter"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "1af9fe-en", "question": "principal:teacher", "choices": {"label": ["A", "B", "C", "D"], "text": ["police:thief", "manager:staff", "teacher:student", "doctor:nurse"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "27a640-en", "question": "youth:village officials:grassroots training", "choices": {"label": ["A", "B", "C", "D"], "text": ["party history:national history", "workers:farmers:wealth creation", "scholars:confucian businessmen:market struggle", "heroine:hero:competing on the same stage"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "abc747-en", "question": "police:civil servants", "choices": {"label": ["A", "B", "C", "D"], "text": ["white people:women", "cotton:cottonseed", "football:sports", "dance:act"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "3a3cb3-en", "question": "sick:medicine", "choices": {"label": ["A", "B", "C", "D"], "text": ["emptiness:faith", "confused:understand", "thunderstorm:gale", "sad:happy"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "0e810b-en", "question": "admire:respect", "choices": {"label": ["A", "B", "C", "D"], "text": ["like:adore", "oppression:exploitation", "spouse:husband and wife", "relatives:neighbors"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "c1730a-en", "question": "firewall:isolation network", "choices": {"label": ["A", "B", "C", "D"], "text": ["radiator:electric blanket", "watch:compass", "memory:calculator", "kongming lantern:energy saving lamp"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "1d704b-en", "question": "flower blush:bees:collecting honey", "choices": {"label": ["A", "B", "C", "D"], "text": ["restaurant:chef:cook", "farmland:farmer:harvest", "universe:star:run", "woods:willow:sprouting"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "4cd587-en", "question": "production:quality inspection:sales", "choices": {"label": ["A", "B", "C", "D"], "text": ["go to school:preview:review", "investigate:organize:analyze", "supervision:improvement:efficiency", "jobless:poverty:relief"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "8eddf7-en", "question": "reading:studying", "choices": {"label": ["A", "B", "C", "D"], "text": ["harvest:cultivation", "inheritance:propagation", "induction:summary", "war:campaign"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "85c7d5-en", "question": "nicotine:cigarettes", "choices": {"label": ["A", "B", "C", "D"], "text": ["honey:biscuits", "smokable methamphetamine:drugs", "sugar:sugar cane", "radishes:vegetables"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "5f5279-en", "question": "foul:free throw", "choices": {"label": ["A", "B", "C", "D"], "text": ["plagiarism:warning", "refuel:drive", "cold:take medicine", "injury:bandage"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "8e69db-en", "question": "alarm clock:clockwork:time", "choices": {"label": ["A", "B", "C", "D"], "text": ["microorganisms:bacteria:decomposition", "tool:pliers:repair", "air conditioner:compressor:refrigeration", "potatoes:carbohydrates:nutrition"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "5b889c-en", "question": "ceramics:teacups", "choices": {"label": ["A", "B", "C", "D"], "text": ["silver:necklace", "clay:potted", "goose feather:coat", "steel:automotive"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "d5d70e-en", "question": "up:down", "choices": {"label": ["A", "B", "C", "D"], "text": ["country road:highway", "yali pear:snow pear", "joy:sorrow", "common year:leap year"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "efed0f-en", "question": "photo:memorial", "choices": {"label": ["A", "B", "C", "D"], "text": ["document:confidential", "antiques:collect", "diary:record", "books:check"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "cb677d-en", "question": "customs:inspection:tariff", "choices": {"label": ["A", "B", "C", "D"], "text": ["optical cable:communication:network speed", "filtration:purification:drinking", "forest:oxygen:health", "desert:camel:transport"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "472f2b-en", "question": "parade:troops:base", "choices": {"label": ["A", "B", "C", "D"], "text": ["consumption:guest:hotel", "interview:representative:venue", "training:staff:position", "casting net:fisherman:sea"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "937e9b-en", "question": "brand:loyalty", "choices": {"label": ["A", "B", "C", "D"], "text": ["label:callout", "boutique:value", "rumor:lie", "culture:identity"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "5548ed-en", "question": "wechat:qq:msn", "choices": {"label": ["A", "B", "C", "D"], "text": ["scanner:printer:cartridge", "sohu:sina:netease", "stamp:mail:mailbox", "computer:mouse:display"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "acca4c-en", "question": "bow:guns:war", "choices": {"label": ["A", "B", "C", "D"], "text": ["brush:fountain pen:calligraphy", "carriage:car:transportation", "book:computer:learning", "radio:television:propaganda"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "328e33-en", "question": "candle:electric light", "choices": {"label": ["A", "B", "C", "D"], "text": ["abacus:computer", "carrier pigeon:telegraph", "firecrackers:muskets", "television:movies"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "74f908-en", "question": "father:daughter", "choices": {"label": ["A", "B", "C", "D"], "text": ["uncle:aunt", "son:son-in-law", "uncle:aunt", "maternal grandfather:mother"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "a61868-en", "question": "oxygen:breathing", "choices": {"label": ["A", "B", "C", "D"], "text": ["watch:time", "brain:thinking", "sun:lighting", "weapon:war"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "eb9d1d-en", "question": "sculpture:painting", "choices": {"label": ["A", "B", "C", "D"], "text": ["government:democracy", "politics:faith", "mechanics:optics", "samples:examples"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "a88664-en", "question": "pen:ballpoint pen:pencil", "choices": {"label": ["A", "B", "C", "D"], "text": ["soap:saponin:toilet soap", "steel scale:weighing scale:bench scale", "table:stool:chair", "gas stove:tv:washing machine"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "0b13e2-en", "question": "comparison:analysis", "choices": {"label": ["A", "B", "C", "D"], "text": ["appreciation:evaluation", "planting:breeding", "prosperity:development", "aid:fund"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "f24e3a-en", "question": "platform:pier:parking apron", "choices": {"label": ["A", "B", "C", "D"], "text": ["cash:check:bank card", "software:hardware:internet", "coat:wedding dress:down jacket", "actor:crowd:host"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "2bf6b0-en", "question": "government affairs:official documents", "choices": {"label": ["A", "B", "C", "D"], "text": ["advertisement:tv", "brand:product", "market:demand", "schedule:plan"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "42139b-en", "question": "call for papers:review:publishing", "choices": {"label": ["A", "B", "C", "D"], "text": ["assembly:repair:scrap", "submission for review:opening title:graduation", "separation:launch:orbit", "painting:on display:framed"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "0be88d-en", "question": "b-ultrasound:ultrasound:diagnosis", "choices": {"label": ["A", "B", "C", "D"], "text": ["radar:antenna:detection", "camera:negative:photography", "refrigerator:refrigerant:refrigeration", "computer:display:work"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "b4613f-en", "question": "ash:ashtray", "choices": {"label": ["A", "B", "C", "D"], "text": ["blackboard:blackboard eraser", "mouse:mousepad", "jewelry:jewelry box", "tie:tie clip"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "0f63b5-en", "question": "pipe:tobacco", "choices": {"label": ["A", "B", "C", "D"], "text": ["wine cabinet:moutai", "windows:daylighting", "glass:beer", "smoke:smoking"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "7ac1e7-en", "question": "bowl:water cup", "choices": {"label": ["A", "B", "C", "D"], "text": ["glass:schoolbag", "light:candle", "sofa:bed", "computer:entertainment"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "6426ab-en", "question": "rice:grain", "choices": {"label": ["A", "B", "C", "D"], "text": ["textbook:school", "television:air conditioner", "sunshine:rain and dew", "elephant:animal"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "6c0822-en", "question": "eye chart:glasses", "choices": {"label": ["A", "B", "C", "D"], "text": ["electronic scales:food", "treadmill:fat", "thermometer:antipyretic", "ct machine:tumor"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "4a079a-en", "question": "dogs, pigs, chickens:doghouse, sty, kenhouse", "choices": {"label": ["A", "B", "C", "D"], "text": ["father, mother, male child:dad, mom, son", "color, sound, flavor:eyes, ears, nose", "fish, shrimp, crab:lake, sea, river", "building, house, roof:roof, beam, tent"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "c40666-en", "question": "metrics:adjust", "choices": {"label": ["A", "B", "C", "D"], "text": ["future:looked forward", "ideal:to achieve", "meeting:postponed", "strength:enhanced"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "5dd9be-en", "question": "mobile:landline:contact", "choices": {"label": ["A", "B", "C", "D"], "text": ["spaceship:rocket:missile", "air conditioner:refrigerator:temperature", "advertisement:slogan:propaganda", "atomic bomb:hydrogen bomb:scientists"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "16b1f0-en", "question": "approval:review:declaration", "choices": {"label": ["A", "B", "C", "D"], "text": ["cooking:chopping:washing vegetables", "running:walking:crawling", "leave early:arrive late:check in", "healed:treatment:injured"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "9d1dfc-en", "question": "plastic:container", "choices": {"label": ["A", "B", "C", "D"], "text": ["lime:cement", "ceramic:tableware", "pier:bridge", "timber:wood"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "e4ba3b-en", "question": "shooting:pistol", "choices": {"label": ["A", "B", "C", "D"], "text": ["stabbing:dagger", "throwing:stone", "fail:escape", "bullet:wounded"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "9b935d-en", "question": "bee:honey", "choices": {"label": ["A", "B", "C", "D"], "text": ["butterfly:cocoon pupa", "hen:egg", "father:child", "farmers:food"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "aa5b10-en", "question": "computer:e-mail:photo", "choices": {"label": ["A", "B", "C", "D"], "text": ["brush:chinese painting:copybook", "truck:goods:refrigerator", "air conditioner:temperature:cold air", "mobile:text message:multimedia message"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "2c324b-en", "question": "male doctor:female professor:professor", "choices": {"label": ["A", "B", "C", "D"], "text": ["politician:litterateur:writer", "irrational numbers:positive integers:positive numbers", "electric vehicle:refrigerator:electric appliance", "highway bridge:railway bridge:bridge"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "c0d80c-en", "question": "worker:gear:mechanical watch", "choices": {"label": ["A", "B", "C", "D"], "text": ["poets:poems:publications", "teacher:textbook:top students", "painter:brush:painting", "cook:flour:steamed bread"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "c6e505-en", "question": "student:military training:physical fitness", "choices": {"label": ["A", "B", "C", "D"], "text": ["patient:treatment:health", "farmer:increase yield:grain", "cadres:development:country", "institution:change:harmony"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "af008f-en", "question": "loans:banks", "choices": {"label": ["A", "B", "C", "D"], "text": ["medical record:patient", "mail:post office", "fire:fire truck", "ticket:traffic police"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "0c34ed-en", "question": "traffic lights:traffic", "choices": {"label": ["A", "B", "C", "D"], "text": ["airport:security check", "cell phone:call", "ministry of education:students", "switch:current"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "d85418-en", "question": "buying tickets:boarding:arriving", "choices": {"label": ["A", "B", "C", "D"], "text": ["production:circulation:consumption", "getting acquainted:falling in love:getting married", "research:survey:summary", "applying:reviewing:winning"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "c701d5-en", "question": "judgment:audition", "choices": {"label": ["A", "B", "C", "D"], "text": ["rescue and disaster relief:aftermath", "performance:audience", "macro control:fiscal policy", "meeting:learning"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "ae983a-en", "question": "ritual:inscription", "choices": {"label": ["A", "B", "C", "D"], "text": ["stock market:stocks", "books:headnotes", "cabinet:prime minister", "ship:route"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "1d8e22-en", "question": "high school students:college students:graduate students", "choices": {"label": ["A", "B", "C", "D"], "text": ["youth:middle age:old age", "morning light:blazing sunshine:the setting sun", "plateau:remote mountain:ravine", "moon phase:the waxing moon:the waning moon"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "c5fd29-en", "question": "vibration:frequency", "choices": {"label": ["A", "B", "C", "D"], "text": ["value:price", "time:money", "moving:speed", "sun:temperature"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "10dfb2-en", "question": "sheep:livestock:grassland", "choices": {"label": ["A", "B", "C", "D"], "text": ["fish and shrimp:seafood:lake water", "books:desk:school", "bird:chirping:woods", "white duck:poultry:river pond"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "8c3f2e-en", "question": "rain:drought", "choices": {"label": ["A", "B", "C", "D"], "text": ["sunshine:damp", "haze:cold", "hurricane:disaster", "hail:farmland"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "0d2d05-en", "question": "planning:implementation:acceptance", "choices": {"label": ["A", "B", "C", "D"], "text": ["litigation:trial:evidence collection", "sales:promotion:production", "bid:bid opening:bidding", "sowing:management:harvest"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "818be2-en", "question": "upland crops:food crops:high yielding crops", "choices": {"label": ["A", "B", "C", "D"], "text": ["industrial alcohol:edible alcohol:medical alcohol", "people's daily:guangming daily:jiefang daily", "leading figures:news figures:public figures", "vertebrates:mammals:higher animals"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "abb04d-en", "question": "earth:north pole", "choices": {"label": ["A", "B", "C", "D"], "text": ["planet:moon", "insects:mosquitoes", "united nations:china", "book:cover"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "83648e-en", "question": "chalk:blackboard", "choices": {"label": ["A", "B", "C", "D"], "text": ["mouse:keyboard", "skate:runway", "key:gate", "battlefield:general"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "dff412-en", "question": "fruit:apple", "choices": {"label": ["A", "B", "C", "D"], "text": ["bergamot pear:yellow pear", "trees:branches", "bmw:mercedes-benz", "mountain:high mountain"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "583cba-en", "question": "food:vegetables:green foods", "choices": {"label": ["A", "B", "C", "D"], "text": ["movies:historical movies:science fiction", "china:haikou city:hainan province", "maps:traffic maps:monochrome maps", "peacock:green peacock:blue peacock"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "7465de-en", "question": "willow:plant:gardener", "choices": {"label": ["A", "B", "C", "D"], "text": ["pen:pencil:student", "car:train:driver", "trees:woods:birds", "milk cows:cows:herders"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "08c9d5-en", "question": "disc:burn:storage", "choices": {"label": ["A", "B", "C", "D"], "text": ["bulb:power on:lighting", "paper:print:read", "satellite:launch:communication", "cloth:cut:keep out the cold"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "47e7b4-en", "question": "triangle:area", "choices": {"label": ["A", "B", "C", "D"], "text": ["trapezoid:tetrahedron", "line segment:circle", "cube:volume", "area:volume"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "07509e-en", "question": "dawn:early morning", "choices": {"label": ["A", "B", "C", "D"], "text": ["mist:desert", "youth:remembrance", "moon:night", "mushroom:rain"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "736b23-en", "question": "football:sports", "choices": {"label": ["A", "B", "C", "D"], "text": ["college student:student", "watermelon:fruit", "fox:animal", "mahjong:entertainment"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "19e212-en", "question": "clay:calcination:ceramic", "choices": {"label": ["A", "B", "C", "D"], "text": ["peat:combustion:thermal energy", "jade:carving:ornament", "students:learning:talent", "grain:fermentation:china-baijiu"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "933a71-en", "question": "investment:stocks", "choices": {"label": ["A", "B", "C", "D"], "text": ["savings:bonds", "bonds:treasury bonds", "listed company:securities company", "securities:liabilities"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "46d87a-en", "question": "bonus:reward:incentive", "choices": {"label": ["A", "B", "C", "D"], "text": ["review:exam:graduate", "calligraphy:music:art", "discount:promotion:competition", "failure:success:growth"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
-{"id": "efabba-en", "question": "sprayer:pesticides", "choices": {"label": ["A", "B", "C", "D"], "text": ["electric vehicles:batteries", "scabbard:sword", "cd:data", "bookcase:books"]}, "answerKey": "", "explanation": ["", "", "", "", ""], "relation": []}
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