AnalyzerSentence analysis6SpansSentence彼はまじめな学生だ。1000 character limitAnalyzeSentence彼かれはまじめな学がく生せいだ。Span Details彼かれhe; him; boyfriendpronounはtopic markergrammarまじめserious; earnest; sober; grave; honest; sincere-> 真面目na-adjective, nounなadnominal form of the copula after a na-adjectivegrammar学がく生せいstudent (especially university)nounだ。plain copulagrammar