Analyzer
Sentence analysis
9Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
熱帯医学
tropical medicinenoun
を
object markergrammar
専門
specialty; field of expertise; major; exclusive focus; doing only; specializing solely innoun
に
direction, time, indirect object, or target markergrammar
研究
research; study; investigationnoun, suru verb
し
light/support verb with a noun or noun-like phrase-> するgrammar
ている。
ongoing or resultant stategrammar