AnalyzerSentence analysis5SpansSentence突然風向きが変わった。1000 character limitAnalyzeSentence突とつ然ぜん風かざ向むきが変かわった。Span Details突とつ然ぜんsudden; abrupt; unexpectedno-adjective, adverb風かざ向むきwind direction; situation; trend; moodnoun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