AnalyzerSentence analysis5SpansSentence真っ黒な雲が空を覆った。1000 character limitAnalyzeSentence真まっ黒くろな雲くもが空そらを覆おおった。Span Details真まっ黒くろpitch black; completely blackna-adjective, nounなadnominal form of the copula after a na-adjectivegrammar雲くもcloudnounがsubject markergrammar空そらを覆おおった。cover the sky; fill the sky-> 空を覆うexpression, verb