Definition: 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.
Input: Sentence1: Although hair is created by living follicles in the scalp, it's dead. 
Sentence2: living follicles in the scalp is especially important in preventing heat loss from the body.

living