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: Dureena Nafeel:  Yes , I 'm a thief , and a damned good _ one _ . Need to get inside something ? Get out ? Tunnel under ? Go around ? Go through ? I 'm it . You 're going to hit some pretty strange places and you 're going to need a lock pick . There is n't a lock made that I ca n't get through .

thief