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.

[Q]: Sentence1: wind is used for producing electricity. 
Sentence2: Winds are caused by pressure differences.
[A]: wind


[Q]: Sentence1: Most pituitary hormones control other endocrine glands. 
Sentence2: Hormones tell the ovaries to produce eggs.
[A]: hormones


[Q]: Sentence1: Many seeds can wait to germinate until conditions are favorable for growth. 
Sentence2: Many factors favor growth.
[A]:
Many