AnalyzerSentence analysis4SpansSentence彼は博識だ。1000 character limitAnalyzeSentence彼かれは博はく識しきだ。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammar博はく識しきextensive knowledge; erudition; learned; erudite; knowledgeablenoun, na-adjectiveだ。plain copulagrammar