Analyzer
Sentence analysis
10Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
未踏
untrodden; unexploredno-adjective, noun
の
possession, attribution, nominalizer, or nominal linkergrammar
分野
field; area; domain; branchnoun
に
direction, time, indirect object, or target markergrammar
挑戦
challenge; attempt; defiancenoun, suru verb
する
light/support verb with a noun or noun-like phrasegrammar
研究者
researchernoun
だ。
plain copulagrammar