AnalyzerSentence analysis4SpansSentenceそこが肝心だ1000 character limitAnalyzeSentenceそこが肝かん心じんだSpan Detailsそこbottom; sole-> 底noun其処そこthere (near listener); there (place just mentioned); that place; then; that point; youがsubject markergrammar肝かん心じんessential; crucial; vital; keyna-adjective, nounだplain copulagrammar