🌐EnglishEnglishDeutschItalianoPolskiفارسیEntityQ2473965· pop 7· linked from 16 articlesugly duckling theoreman argument showing that classification is not really possible without some sort of biasWikidata factsImageMute Swan Cygnets detail.jpgvia Wikidata · CC0Available in 7 languagesDeutschItalianoAlbanianPolskisimpleفارسیvia Wikidata sitelinks · CC0ConnectionsHans Christian AndersenEntityInternational Standard Book NumberEntityCategories1960s neologismsArgumentsBiasMachine learningMetaphors referring to ducksOntologyTheorems