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: If the medicine is in the form of a pill, swallow the pill whole. 
Sentence2: swallowing pills whole is used for curing people when they are sick.

whole