When summer arrives, the thick fur, which helped the wolf survive the bitter cold, becomes an irritation.
(summer; arrives; ) (the thick fur, which helped the wolf survive the bitter cold; becomes; an irritation; T:When summer arrives) (the thick fur; helped; the wolf survive the bitter cold) Context(the thick fur helped,List([21, 48))):(the wolf; survive; the bitter cold)
the thick fur helped,List([21, 48))
summer the thick fur, which helped the wolf survive the bitter cold the thick fur the wolf
arrives becomes helped survive
an irritation T:When summer arrives
the wolf survive the bitter cold
the bitter cold