AnalyzerSentence analysis3SpansSentence重大な局面1000 character limitAnalyzeSentence重じゅう大だいな局きょく面めんSpan Details重じゅう大だいserious; important; significant; gravena-adjective, nounなadnominal form of the copula after a na-adjectivegrammar局きょく面めんposition in a game; state of the game; situation; phase; stagenoun