AnalyzerSentence analysis2SpansSentence自然観察者1000 character limitAnalyzeSentence自し然ぜん観かん察さつ者しゃSpan Details自し然ぜんnature; the natural world; natural; spontaneous; automatic; naturally; spontaneously; automaticallynoun, na-adjective, adverb観かん察さつ者しゃobservernoun