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: a rubber band snapping causes the particles in the rubber band to vibrate. 
Sentence2: Elastics are rubber bands that connect the upper and lower braces.

band