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Sentence analysis
7Spans
Sentence
Span Details
延髄
medulla oblongatanoun, no-adjective
は
topic markergrammar
生命
life; existence; working life; career; life force; lifeblood; soul; essencenoun, noun suffix
維持
maintenance; preservation; keeping upnoun, suru verb
に
direction, time, indirect object, or target markergrammar
不可欠
indispensable; essential; vitalna-adjective, noun
だ。
plain copulagrammar