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: Blood pressure is highest in arteries and lowest in veins. 
Sentence2: What is Blood Pressure Blood pressure is the pressure on the blood vessel walls.

pressure