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Sentence
Span Details
坑内掘り炭鉱
underground coal minenoun
の
possession, attribution, nominalizer, or nominal linkergrammar
労働環境
work environment; working conditionsnoun
は
topic markergrammar
非常に
very; extremely; exceedinglyadverb
厳しかっ
strict; severe; rigorous; hard; difficult; tough; harsh; intense-> 厳しいi-adjective
た。
past tense or completed actiongrammar