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: Locusts are amongst the most dramatic and devastating of the insect pests. 
Sentence2: Locusts are amongst the most dramatic and devastating pest, they spread disease and destroy crops.

dramatic