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: Earth 's magnetic patterns are used for finding locations by animals that migrate. 
Sentence2: Earth s rotation and iron core creates a magnetic field much like giant magnet.

magnetic