AnalyzerSentence analysis4SpansSentence会議が活気づいた。1000 character limitAnalyzeSentence会かい議ぎが活かっ気きづいた。Span Details会かい議ぎmeeting; conference; sessionnoun, suru verbがsubject markergrammar活かっ気きづいbecome lively; liven up; become animated-> 活気付くgodan verbた。past tense or completed actiongrammar