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Sentence
Span Details
石炭
coalnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
掘削
excavation; diggingnoun, suru verb
が
subject markergrammar
続け
continue; keep doing; keep up; continue to ...; keep on ...-> 続けるichidan verb, auxiliary
られ
passive, potential, or respect auxiliary-> れる/られるgrammar
ている。
ongoing or resultant stategrammar