You will be given a definition of a task first, then some input of the task.
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.

Vince Kessler: All right , look . I know how this looks , and what you guys might be thinking , but I did not hurt Connie .
Detective Frank Tripp: Explain , then , why you swapped out her mouth guard with _ one _ laced with ipecac .
Vince Kessler: Uh , I did n't .
Detective Frank Tripp: You molded it yourself , idiot .
Lieutenant Horatio Caine: Which means we can match it to you .
Vince Kessler: Look , not my finest hour , I will admit that .
Lieutenant Horatio Caine: It 's also gon na bring you an assault charge .
Vince Kessler: Look , Connie was a monster on the track . Okay , the only chance my team had of winning is if she was n't playing . All right ? Besides , ipecac is harmless .
Lieutenant Horatio Caine: Unlike the beating you gave her .
Vince Kessler: No , I did n't . I just- I wanted to get her a little sick so she could n't play .
Detective Frank Tripp: You got money riding on this ?
Vince Kessler: No , I just want to see my team win .
Detective Frank Tripp: Well , I 'm the biggest sports fan you 'll ever meet , but that is just plain stupid .
Output:
guard