AnalyzerSentence analysis6SpansSentence彼の専門は数学です。1000 character limitAnalyzeSentence彼かれの専せん門もんは数すう学がくです。Span Details彼かれhe; him; boyfriendpronounのpossession, attribution, nominalizer, or nominal linkergrammar専せん門もんspecialty; field of expertise; major; exclusive focus; doing only; specializing solely innounはtopic markergrammar数すう学がくmathematicsnounです。be; is; arecopula, auxiliary出洲ですspit of land; sandspit