AnalyzerSentence analysis4SpansSentence肝心なのは1000 character limitAnalyzeSentence肝かん心じんなのはSpan Details肝かん心じんessential; crucial; vital; keyna-adjective, nounなadnominal form of the copula after a na-adjectivegrammarのpossession, attribution, nominalizer, or nominal linkergrammarはtopic markergrammar