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: All insects have heads, abdomens, and thoraxes, antennae, six legs, and wings. 
Sentence2: All insects have wings that are part of the exoskeleton.

All