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: When earthquakes occur near cities of any size, the potential for damage is great. 
Sentence2: A seismograph is used for measuring the size of the damage done by an occurrence.

size