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Sentence analysis
7Spans
Sentence
Span Details
空気
air; atmosphere; mood; situation; someone with no presence; someone who doesn't stand outnoun
冷却装置
cooling device; coolernoun
の
possession, attribution, nominalizer, or nominal linkergrammar
メンテナンス
maintenancenoun
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar