Analyzer
Sentence analysis
6Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
問題
question; problem (on a test); problem; issue; matter; doubt; public discussion; controversy; trouble; difficulty; inconveniencenoun
を
object markergrammar
解く
untie; unfasten; undo; unsew; unstitch; solve; work out; answer; dispel; clear up; remove (suspicion); cancel; lift; release; comb; untangle (hair)godan verb
のに
although; despite; in order togrammar
頭をひねった。
puzzle over; rack one's brains; think deeply about-> 頭を捻るexpression, verb