AnalyzerSentence analysis3SpansSentence初めてのセックス1000 character limitAnalyzeSentence初はじめてのセックスSpan Details初はじめてfor the first time; only after ...; not until ...; first time; one's firstadverb, no-adjective, nounのpossession, attribution, nominalizer, or nominal linkergrammarセックスsex; sexual intercourse; gendernoun, suru verb