AnalyzerSentence analysis5SpansSentence長年の研究が徒労に終わった。1000 character limitAnalyzeSentence長なが年ねんの研けん究きゅうが徒と労ろうに終おわった。Span Details長なが年ねんmany years; a long timenoun, adverbのpossession, attribution, nominalizer, or nominal linkergrammar研けん究きゅうresearch; study; investigationnoun, suru verbがsubject markergrammar徒と労ろうに終おわった。end in vain; prove to be wasted effort-> 徒労に終わるexpression, verb
