Analyzer
Sentence analysis
7Spans
Sentence
Span Details
それ
that; it; then; that time; that point; there; you-> 其れpronoun
は
topic markergrammar
彼
he; him; boyfriendpronoun
の
possession, attribution, nominalizer, or nominal linkergrammar
専門
specialty; field of expertise; major; exclusive focus; doing only; specializing solely innoun
領域
territory; domain; field; area; sphere; realm; regionnoun
だ。
plain copulagrammar