Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.

[EX Q]: Sentence1: riding a bike does not cause pollution. 
Sentence2: riding a bike does not release particles.
[EX A]: bike

[EX Q]: Sentence1: Insulin is a hormone that helps cells absorb sugar from the blood. 
Sentence2: the pancreas produces a hormone that helps cells absorb sugar from the blood.
[EX A]: absorb

[EX Q]: Sentence1: Another common snail is the decollate snail. 
Sentence2: Decollate snails are mollusks.
[EX A]:
decollate