AnalyzerSentence analysis3SpansSentence人生の最盛期1000 character limitAnalyzeSentence人じん生せいの最さい盛せい期きSpan Details人じん生せいlife; one's lifenounのpossession, attribution, nominalizer, or nominal linkergrammar最さい盛せい期きgolden age; prime; heyday; peak season; best timenoun