AnalyzerSentence analysis6SpansSentence下流域では水質汚染が深刻だ。1000 character limitAnalyzeSentence下か流りゅう域いきでは水すい質しつ汚お染せんが深しん刻こくだ。Span Details下か流りゅう域いきlower reaches; downstream areanounではcontrastive で + は; then; well thengrammar水すい質しつ汚お染せんwater pollutionnounがsubject markergrammar深しん刻こくserious; severe; grave; acutena-adjective, nounだ。plain copulagrammar
