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: Chris Todson:  Basic rules of the game , Jimmy Boy . Buy on rumour , sell on fact . I needed a good rumour .
Jim Swan: Planting _ one _ ?
Chris Todson: Why , you do n't think a wire service would go to press without checking their sources , do you ?

rumour