AnalyzerSentence analysis6SpansSentence彼は知識の宝庫だ。1000 character limitAnalyzeSentence彼かれは知ち識しきの宝ほう庫こだ。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammar知ち識しきknowledge; informationnounのpossession, attribution, nominalizer, or nominal linkergrammar宝ほう庫こtreasury; treasure house; storehouse; treasure trove; rich sourcenounだ。plain copulagrammar