AnalyzerSentence analysis6SpansSentence彼は数学が上手だ。1000 character limitAnalyzeSentence彼かれは数すう学がくが上手じょうずだ。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammar数すう学がくmathematicsnounがsubject markergrammar上手じょうずskillful; good at; proficient; flatteryna-adjective, nounだ。plain copulagrammar