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Sentence analysis
7Spans
Sentence
Span Details
素早い
quick; swift; nimble; agile; quick-witted; alert; prompti-adjective
決断
decision; determination; resolutionnoun, suru verb
と
quotation, conditional, companion, or and markergrammar
行動
action; conduct; behavior; mobilizationnoun, suru verb, no-adjective
が
subject markergrammar
成功の鍵
key to success; key success factorexpression, noun
だ。
plain copulagrammar