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Sentence analysis
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Sentence
Span Details
海底油田
offshore oil fieldnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
賦存量
reserves; potential capacitynoun
が
subject markergrammar
調査
investigation; examination; inquiry; surveynoun, suru verb
され
passive, potential, or respect auxiliary-> されるgrammar
た。
past tense or completed actiongrammar