AnalyzerSentence analysis7SpansSentence環境問題は彼の主な関心事だ。1000 character limitAnalyzeSentence環かん境きょう問もん題だいは彼かれの主おもな関かん心しん事じだ。Span Details環かん境きょう問もん題だいenvironmental problem; environmental issuenounはtopic markergrammar彼かれhe; him; boyfriendpronounのpossession, attribution, nominalizer, or nominal linkergrammar主おもなmain; chief; principal; importantpre-noun adjective関かん心しん事じmatter of concern; matter of interestnounだ。plain copulagrammar