Analyzer
Sentence analysis
10Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
は
topic markergrammar
歴史
historynoun
に
direction, time, indirect object, or target markergrammar
ついて
about; concerning; regarding-> 就いてexpression
の
possession, attribution, nominalizer, or nominal linkergrammar
論文
thesis; paper; article; essaynoun
を
object markergrammar
書い
write; compose; pen; draw; paint-> 書くgodan verb
ている。
ongoing or resultant stategrammar