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: Spike:  You might give him a chance to find your lost treasure . He is a wanker , but he 's the only _ one _ we 've got with half a brain . If he fails , you can eat his eyes out of the sockets for all I care .

He