AnalyzerSentence analysis5SpansSentence北氷洋の探検は困難を極めた。1000 character limitAnalyzeSentence北ほっ氷ぴょう洋ようの探たん検けんは困こん難なんを極きわめた。Span Details北ほっ氷ぴょう洋ようArctic Oceannounのpossession, attribution, nominalizer, or nominal linkergrammar探たん検けんexploration; expeditionnoun, suru verbはtopic markergrammar困こん難なんを極きわめた。be extremely difficult; present a major challenge-> 困難を極めるexpression, verb
