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 the season changes , the amount of daylight will change. 
Sentence2: Changing the angle of the sun will change the amount of daylight.

change