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: a graduated cylinder is used to measure volume of a liquid. 
Sentence2: Graduated cylinders are used to measure the volume of the second form of matter.

cylinder