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: NYPD Detective Kate Beckett:  Where are we on the boyfriend ?
Javier Esposito: His story checks out . Video and a sign - in sheet .
NYPD Detective Kate Beckett: Great . So now all we have is a cheating husband with a possible alibi and no cell phone to run the perp 's fingerprints .
Kevin Ryan: I got something better .
NYPD Detective Kate Beckett: Please tell me it 's that the mayor wants him out of here .
Richard Castle: You ever notice how she gets a little grumpy when she does n't have a suspect ?
Kevin Ryan: We got _ one _ now . Guess who was n't where they say they were the day Sara Manning was killed ?
NYPD Detective Kate Beckett: Who ?
Kevin Ryan: Come on , you got ta guess .
NYPD Detective Kate Beckett: Ryan . Ryan . I 'm not guessing .
Kevin Ryan: You 're a killjoy , you know that ?
Richard Castle: Exactly what I 've been telling her .
NYPD Detective Kate Beckett: No way .
Kevin Ryan: Pretty good , huh ? Told you you should have guessed .

suspect