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: Sweat wets the skin, and when it evaporates, it cools the body. 
Sentence2: Skin is hot and red, but wet with sweat.

Sweat