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: Robert McCall:  RPG-7 rocket launchers ! They 're Russian weapons ; those damn things are here illegally in the first place , they 're getting ready to ship them out .
Jimmy: Rambo used _ one _ .
Robert McCall: Rambo who ?

launchers