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: Acidity is measured with a pH meter or with pH paper strips. 
Sentence2: All life relies on a relatively narrow range of something you can measure with paper strips.

strips