Analyzer
Sentence analysis
8Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
の
possession, attribution, nominalizer, or nominal linkergrammar
研究
research; study; investigationnoun, suru verb
は
topic markergrammar
考証学
evidential textual research; textual criticismnoun
に
direction, time, indirect object, or target markergrammar
基づい
be based on; be founded on; be grounded in; be due to; come from; arise from-> 基づくgodan verb
ている。
ongoing or resultant stategrammar