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: Leaves are covered with a waxy layer, the cuticle , which prevents water loss. 
Sentence2: Leaves are covered with a cuticle which are used to store water in plants.

which