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: Viruses are usually considered to be nonliving. 
Sentence2: Viruses are usually acquired from contact with infected animals.
[EX A]: Viruses

[EX Q]: Sentence1: if an organism becomes too hot then that organism may die. 
Sentence2: a plant can collapse if it gets too hot.
[EX A]: hot

[EX Q]: Sentence1: Growth hormone is in many ways an anti-aging hormone. 
Sentence2: chemical messengers control anti-aging.
[EX A]:
anti-aging