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: Electrical energy can be converted into kinetic energy and heat energy by an electric motor. 
Sentence2: Microbial fuel cells convert chemical energy into something that can be converted into kinetic energy and heat energy by a motor.

kinetic