Michael served as the chairman's number two, providing much of the day-to-day management.
Our number one issue is fighting terrorism and number two is the economy.
She notified the audience that she was late because she had to take a number two.
What would you do if you needed a number two when you were wearing that thing?
A child had an accident in the pool - unfortunately, it was a number two.
Indeed, the proposition that the number two is non-green is necessarily true.
For that argument, applied to our present example, implies that the green\non-green dualism does not apply to the number two.