AnalyzerSentence analysis4SpansSentenceそれは未知の領域だ。1000 character limitAnalyzeSentenceそれは未み知ちの領りょう域いきだ。Span Detailsそれthat; it; then; that time; that point; there; you-> 其れpronounはtopic markergrammar未み知ちの領りょう域いきuncharted territory; unknown waters; unfamiliar terrainexpression, nounだ。plain copulagrammar