Because the caterpillar and adult eat different kinds of food, this helps the butterflies to better survive.
(the caterpillar and adult; eat; different kinds of food) (this; helps; the butterflies to better survive) Context(this helps,List([63, 73))):(the butterflies; to better survive; )
this helps,List([63, 73))
the caterpillar and adult this the butterflies
eat helps to better survive
different kinds of food
the butterflies to better survive