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: Mollusks are invertebrates such as the common snail. 
Sentence2: Another common snail is the decollate snail.
[EX A]: snail

[EX Q]: Sentence1: Hermit crabs use the shells of dead snails for homes. 
Sentence2: Hermits crabs use dead snails shells as their place to live.
[EX A]: Hermit

[EX Q]: Sentence1: absorbing sunlight causes objects to heat. 
Sentence2: Sunlight is the ultimate form of energy.
[EX A]:
sunlight