Instructions: 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:  Not quite sure where you 're going with this , Castle .
Richard Castle: Up .
Richard Castle: All
Richard Castle: right , thirty - two seconds . It takes thirty - two seconds to get from the basement to the twelfth floor .
NYPD Detective Kate Beckett: Great . I 'll alert the media .
Richard Castle: Only the second time , it took her thirty - seven seconds .
NYPD Detective Kate Beckett: Why would it take her five extra seconds ?
Richard Castle: Because the second time , she was n't coming from the twelfth floor . She was coming from the ...
NYPD Detective Kate Beckett: Fifteenth floor ? This does n't make any sense . The Petersons live on _ twelve _ .
Richard Castle: Yeah , but I bet the guy who wears that condom lives on fifteen . By the way , that whole elevator thing , I just did that 'cause you smell nice .
NYPD Detective Kate Beckett: Castle , you ca n't just knock on people 's doors .
Richard Castle: Why not ?
Output:
floor