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: Consider Input: Nathan:  So , do you know what the Turing Test is ?
Caleb: Yeah . I know what the Turing Test is . It 's when a human interacts with a computer and if the human does n't know they 're interacting with a computer , the test is passed .
Nathan: And what does a pass tell us ?
Caleb: That the computer has artificial intelligence . Are you building an AI ?
Nathan: I 've already built _ one _ .

Output: AI


Input: Consider Input: Antoine Triplett:  I was just wondering , how many of you are there , any way ? Brothers , I mean .
Billy Koenig, Sam Koenig: 13 .
Antoine Triplett: _ 13 _ ?
Billy Koenig: Look
Billy Koenig: at him . He fell for it .
Antoine Triplett: Yeah .
Sam Koenig: That gets people all the time .
Antoine Triplett: Yeah , yeah , you - you got me . You got me good .

Output: Brothers


Input: Consider Input: Agnès Dumont:  Leave me alone !
Daniel Roy: I 'll take you home .
Agnès Dumont: I do n't have _ one _ ! My brother does n't have room for me .
Daniel Roy: Then sleep in my bed .
Agnès Dumont: Never !


Output: home