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Sentence
Span Details
交渉
negotiations; bargaining; talks; connection; relationship; dealingsnoun, suru verb
が
subject markergrammar
決裂
breakdown; rupture; breaking offnoun, suru verb
して、
light/support verb with a noun or noun-like phrase-> するgrammar
振り出しに戻った。
go back to square one; make a fresh start; be back where one started-> 振り出しに戻るexpression, verb