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: Soil Biodiversity Soil biodiversity reflects the mix of living organisms in the soil. 
Sentence2: the mix of living organisms generally increases from the poles to the equator.

mix