instruction:
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.
question:
Felix DeMarco:  Okay , I want two cameras ! I know it sounds risky , but we 're gon na do _ two _ !
answer:
cameras


question:
Dempsey:  Can you get a pastrami sandwich in England ?
O'Grady: If you ca n't , I 'll mail you _ one _ .
Dempsey: On rye . Do n't forget the pickle .
answer:
sandwich


question:
Bomb Tech:  Yeah , lucky for you . We 're talking at least 16000 feet per second .
Lieutenant Horatio Caine: Really ? It felt like _ 15 _ .
answer:

feet