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Sentence analysis
6Spans
Sentence
Span Details
両国
both countries; Ryōgoku (area of Tokyo)noun
は
topic markergrammar
攻守同盟
offensive and defensive alliancenoun
を
object markergrammar
結ん
tie; bind; link; bear (fruit); close (a deal); conclude; confirm; connect (two distant places); close tightly; purse (lips); unite; ally; join hands-> 結ぶgodan verb
だ。
past tense or completed action-> たgrammar