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: if two balanced forces act on an object in opposite directions then that object will remain stationary. 
Sentence2: Pushes and pulls can change the movement of an object.

object