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Sentence analysis
7Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
病気
illness; disease; sickness; bad habit; weakness; failing; crazy; insane; sick in the headnoun, no-adjective
は
topic markergrammar
ウイルス
virusnoun
に
direction, time, indirect object, or target markergrammar
起因
be caused by; result from; arise from; cause; originsuru verb, noun
する。
light/support verb with a noun or noun-like phrasegrammar