AnalyzerSentence analysis3SpansSentence口先だけの約束1000 character limitAnalyzeSentence口くち先さきだけの約やく束そくSpan Details口くち先さきだけall talk; insincere; empty wordsexpression, no-adjectiveのpossession, attribution, nominalizer, or nominal linkergrammar約やく束そくpromise; agreement; one's word; contract; appointment; engagement; date; convention; rule; destiny; fatenoun, suru verb