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: Temperature falls from the equator to the poles. 
Sentence2: First, strong winds circling Antarctica isolate the atmosphere near the pole the winter.

poles