Analyzer
Sentence analysis
9Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
の
possession, attribution, nominalizer, or nominal linkergrammar
研究
research; study; investigationnoun, suru verb
へ
direction markergrammar
の
possession, attribution, nominalizer, or nominal linkergrammar
没頭
immerse oneself in; be absorbed in; devote oneself tonoun, suru verb
は
topic markergrammar
狂気の沙汰
crazy deed; act of sheer madness; the height of madnessexpression
だった。
past copulagrammar