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Sentence analysis
6Spans
Sentence
Span Details
心
mind; heart; spirit; meaning; point; hidden sensenoun
に
direction, time, indirect object, or target markergrammar
疑念
doubt; suspicion; misgivingsnoun
が
subject markergrammar
巣くっ
nest; build a nest; hang out (of a bad group); be based (in); haunt; lodge (in one's mind); be planted; lurk (in one's heart)-> 巣食うgodan verb
ている。
ongoing or resultant stategrammar