Definition: In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Input: Sheriff Sanders:  Listen , I appreciate you guys coming down here , but I only got one body
Aaron Hotchner: Which we believe is the work of a serial killer
Sheriff Sanders: Well , then it has to be more than _ one _ to be a series ?

body