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: Pregnancy is the carrying of one or more offspring from fertilization until birth. 
Sentence2: Infertility is also the inability to carry a pregnancy to full term.

Pregnancy