AnalyzerSentence analysis4SpansSentence境界があいまいだ。1000 character limitAnalyzeSentence境きょう界かいがあいまいだ。Span Details境きょう界かいboundary; border; limitnounがsubject markergrammarあいまいvague; ambiguous; unclear; shady; disreputable; dubious; fuzzy-> 曖昧na-adjective, nounだ。plain copulagrammar