The amendment states that the first round would be Liberal, Bloc, Conservative, NDP. Round two would be Conservative, Liberal, Conservative, Bloc, Conservative, Liberal, Conservative, NDP. That sets it up.
Evidence of meeting #1 for Special Committee on the Canadian Mission in Afghanistan in the 40th Parliament, 2nd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was chair.
A recording is available from Parliament.