AnalyzerSentence analysis6SpansSentence道床のメンテナンスが必要だ。1000 character limitAnalyzeSentence道どう床しょうのメンテナンスが必ひつ要ようだ。Span Details道どう床しょうroadbednounのpossession, attribution, nominalizer, or nominal linkergrammarメンテナンスmaintenancenounがsubject markergrammar必ひつ要ようnecessary; needed; essential; necessity; need; requirementna-adjective, nounだ。plain copulagrammar
