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: Alexis Castle:  Dad , Hayley 's gone .
Richard Castle: Gone where ?
Alexis Castle: I do n't know , but she ditched her cell phone . I ca n't track her .
Richard Castle: Hang on . I 'm putting you on speaker . What was the last thing Hayley did before she disappeared ?
Alexis Castle: She discovered the computer worm was _ one _ she helped design years ago .
Richard Castle: So Edgar used Hayley 's own code to help frame her .
Kevin Ryan: But why did she take off right when she was closing in ?
Kate Beckett: Because she knows who the killer is , and his name is n't Edgar . I did some research on her dead MI6 partner , Wesley Connors , and I found this article from six years ago .
Richard Castle: Wait a minute . Wesley Connors is the man in the brown leather jacket .
Kate Beckett: I knew he looked familiar .
Javier Esposito: This article says he 's been executed .
Alexis Castle: Guys , when Hayley recognized the code , she looked like she 'd just seen a ghost .
Richard Castle: That 's because she did . Wesley Connors is still alive .

worm