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Sentence
Span Details
大和国家
Yamato state; Yamato politynoun
は
topic markergrammar
古墳時代
Kofun period; Tumulus periodnoun
に
direction, time, indirect object, or target markergrammar
成立
formation; establishment; coming into existence; conclusion; reaching; completion; being valid; holding true; applyingnoun, suru verb
した
light/support verb with a noun or noun-like phrase-> するgrammar
とされる。
is regarded as; is said to begrammar