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Sentence analysis
8Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
祭り
festival; feast; matsuri; online shaming; Internet mob harassment; flaming; galore; frenzy; manianoun, noun suffix
の
possession, attribution, nominalizer, or nominal linkergrammar
源流
source of a river; headwaters; origin; sourcenoun
は
topic markergrammar
平安時代
Heian period (794-1185)noun
に
direction, time, indirect object, or target markergrammar
さかのぼる。
go upstream; go up a river; go back in time; date back to; trace back to; be retroactive-> 遡るgodan verb