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Sentence analysis
7Spans
Sentence
Span Details
坑道
tunnel; gallery; level; shaft; pitnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
壁材
wall material; wall-finishing material; wallplate (mining)noun
が
subject markergrammar
老朽化
deterioration; becoming decrepit; becoming worn outnoun, suru verb
し
light/support verb with a noun or noun-like phrase-> するgrammar
ている。
ongoing or resultant stategrammar