AnalyzerSentence analysis3SpansSentenceまれな成分1000 character limitAnalyzeSentenceまれな成せい分ぶんSpan Detailsまれrare; uncommon; seldom-> 稀na-adjectiveなadnominal form of the copula after a na-adjectivegrammar成せい分ぶんingredient; component; compositionnoun