AnalyzerSentence analysis6SpansSentence大雨で河川敷が水没した。1000 character limitAnalyzeSentence大おお雨あめで河か川せん敷じきが水すい没ぼつした。Span Details大おお雨あめheavy rain; downpour; torrential rainnounでlocation, means, or scope markergrammar河か川せん敷じきriverbed area; flood plain; riverside landnounがsubject markergrammar水すい没ぼつsubmergence; immersion; going underwaternoun, suru verbした。light/support verb with a noun or noun-like phrase-> するgrammar