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: magnetism can cause objects to repel each other. 
Sentence2: magnetism is the force that causes objects to push or attract each other.

magnetism