AnalyzerSentence analysis6SpansSentence彼は優秀な科学者だ。1000 character limitAnalyzeSentence彼かれは優ゆう秀しゅうな科か学がく者しゃだ。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammar優ゆう秀しゅうsuperior; excellent; outstandingna-adjective, nounなadnominal form of the copula after a na-adjectivegrammar科か学がく者しゃscientistnounだ。plain copulagrammar