AnalyzerSentence analysis5SpansSentence成功の鍵は努力のみだ。1000 character limitAnalyzeSentence成せい功こうの鍵かぎは努ど力りょくのみだ。Span Details成せい功こうの鍵かぎkey to success; key success factorexpression, nounはtopic markergrammar努ど力りょくeffort; hard work; endeavornoun, suru verbのみonlygrammarだ。plain copulagrammar