AnalyzerSentence analysis3SpansSentence必要不可欠な条件1000 character limitAnalyzeSentence必ひつ要よう不ふ可か欠けつな条じょう件けんSpan Details必ひつ要よう不ふ可か欠けつabsolutely essential; indispensable; vitalna-adjectiveなadnominal form of the copula after a na-adjectivegrammar条じょう件けんcondition; term; requirement; prerequisitenoun