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: Santa Claus:  Ho . Ho . Ho .
Erica: Jim . what was that ?
Jim: I do n't know . Sounded like it came from the kitchen .
Erica: Oh my God , Jim , I 'm so scared . What if it 's the serial killer , the _ one _ that comes in the middle of the night ?
Jim: You mean like twelve o clock ?
Erica: Yes . The one that comes out at twelve . What other one ?
Jim: It 's okay , it 's only ten - thirty .

killer