AnalyzerSentence analysis4SpansSentence努力は成功の鍵だ。1000 character limitAnalyzeSentence努ど力りょくは成せい功こうの鍵かぎだ。Span Details努ど力りょくeffort; hard work; endeavornoun, suru verbはtopic markergrammar成せい功こうの鍵かぎkey to success; key success factorexpression, nounだ。plain copulagrammar