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: Magnetism A compass works on the principle of magnetism and points to the North Magnetic Pole. 
Sentence2: A compass works on the principle of the objects ability repel each other.

principle