AnalyzerSentence analysis4SpansSentence話題が変わった。1000 character limitAnalyzeSentence話わ題だいが変かわった。Span Details話わ題だいtopic; subject; topical; much talked about; in the newsnoun, no-adjectiveがsubject markergrammar変かわっchange; be transformed; vary; move to; be changed to another place; be different; be unusual; be uncommon-> 変わるgodan verbた。past tense or completed actiongrammar