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: Freeman Lowell:  Hey , wait a minute , wait a minute ... I do n't think you guys understand what this means , please do n't blow up the domes .
Andy Wolf: Which ones going first ?
Marty Barker: Lets hit _ four _ first .
Freeman Lowell: But they 're not disposable !
John Keenan: We do n't have any choice Lowell .
Freeman Lowell: But they 're not replaceable !

domes