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Sentence analysis
8Spans
Sentence
Span Details
海洋学
oceanography; oceanologynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
研究
research; study; investigationnoun, suru verb
に
direction, time, indirect object, or target markergrammar
は
topic markergrammar
調査船
research vessel; research shipnoun
が
subject markergrammar
欠かせない。
indispensable; essential; vital; crucialexpression, i-adjective