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: To collect cutworm larvae, a garden trowel and a soil sifter are useful tools. 
Sentence2: A soil sifter can be employed to separate out cutworm larvae.

soil