AnalyzerSentence analysis6SpansSentence南京大虐殺は歴史的な悲劇だ。1000 character limitAnalyzeSentence南なん京きん大だい虐ぎゃく殺さつは歴れき史し的てきな悲ひ劇げきだ。Span Details南なん京きん大だい虐ぎゃく殺さつNanking Massacre; Rape of Nankingnounはtopic markergrammar歴れき史し的てきhistorical; traditional; historicna-adjectiveなadnominal form of the copula after a na-adjectivegrammar悲ひ劇げきtragedy; tragic drama; disaster; calamitynounだ。plain copulagrammar