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: Life depends to a large degree on the temperature of the planet, and temperature depends in part on the distance of the planet from the sun. 
Sentence2: Life cannot be sustained above a certain temperature.

temperature