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: Sperm and seminal fluid are released into the urethra during sperm transfer to the female. 
Sentence2: Seminal fluid is passed out of the body to the female through the urethra.

female