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Sentence analysis
9Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
海域
sea area; watersnoun
では
contrastive で + は; then; well thengrammar
急潮
rapid tide; fast tidal current; storm surges on the Pacific coastnoun
に
direction, time, indirect object, or target markergrammar
注意
attention; notice; heed; care; caution; precaution; advice; warning; reminder; admonishment; reprimand; telling-offnoun, suru verb
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar