Detailed Instructions: 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.
Problem:Sentence1: Menopause occurs when menstruation stops occurring, usually in middle adulthood. 
Sentence2: Hot flashes are the classic sign of menopause and peri-menopause.
Solution:
Menopause