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: when an electrical circuit is working properly , electrical current runs through that circuit. 
Sentence2: When a circuit is working properly, a charge in motion runs through that circuit.

circuit