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: Doctor Beverly Crusher:  Penny .
Captain Jean-Luc Picard: What ?
Doctor Beverly Crusher: For your thoughts . Penny for your thoughts .
Captain Jean-Luc Picard: Do you have _ one _ ?
Doctor Beverly Crusher: I 'm sure the replicator will have one on file .

Penny