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Sentence analysis
6Spans
Sentence
Span Details
石炭層
coal seam; coal bednoun
の
possession, attribution, nominalizer, or nominal linkergrammar
採掘
mining; digging; excavationnoun, suru verb
が
subject markergrammar
始まっ
begin; start; commence; start up again; begin again; happen again; date from; originate in; have its beginnings in-> 始まるgodan verb
た。
past tense or completed actiongrammar