AnalyzerSentence analysis3SpansSentence不安定な天気1000 character limitAnalyzeSentence不ふ安あん定ていな天てん気きSpan Details不ふ安あん定ていunstable; insecure; precariousna-adjective, nounなadnominal form of the copula after a na-adjectivegrammar天てん気きweather; fine weather; fair weathernoun