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: Sense of smell is the ability to detect odors. 
Sentence2: Better ability to detect odors has a positive impact on an animal's survival.

odors