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: Osteoclasts are specialized cells known to play a key role in bone resorption and bone remodeling. 
Sentence2: Healing of fractures requires cells specialized in bone remodeling.

specialized