Given the task definition and input, reply with output. In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to provide one question which clarifies the input question and it has one unique answer, and also provide an answer to the generated question. Generated question and answer should be separated with a new line.

The portion of the uterine endometrium that is shed every month is the?

What is the name of the portion of the uterine endometrium that is shed every month? 
 functional layer