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: Here and on the lamina the upper epidermis has a thick cuticle. 
Sentence2: The upper epidermis has a layer which helps prevent water loss, abrasions, infections, and damage from toxins.

upper