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: gases released during the use of fossil fuels causes global warming. 
Sentence2: Adoption of geothermal energy to produce electricity can reduce global warming.

warming