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Sentence analysis
7Spans
Sentence
Span Details
USSR
USSR; Soviet Union-> ＵＳＳＲnoun
は
topic markergrammar
1991
-noun
年
year; counter for years; counter for grades; apprenticeship period (usu. ten years)noun, counter
に
direction, time, indirect object, or target markergrammar
崩壊
collapse; crumbling; breaking down; radioactive decay; disintegrationnoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar