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: Desertifcation can be caused by overgrazing, soil erosion, prolonged drought, or climate change. 
Sentence2: being exposed to wind can cause Desertifcation.

Desertifcation