You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

Let me give you an example: Powdered sugar, also called confectioners' sugar, icing sugar, and icing cake, is a finely ground sugar produced by milling granulated sugar into a powdered state. It usually contains a small amount of anti-caking agent to prevent clumping and improve flow. Although most often produced in a factory, powdered sugar can also be made by processing ordinary granulated sugar in a coffee grinder, or by crushing it by hand in a mortar and pestle.
The answer to this example can be: is confectionary sugar the same as powdered sugar?
Here is why: The question is a yes/no question, and it is answerable based on the given passage.

OK. solve this:
A turn on red is a principle of law permitting vehicles at a traffic light showing a red signal to turn into the direction of traffic nearer to them (almost always after a complete stop) when the way is clear, without having to wait for a green signal. It is intended to allow traffic to resume moving, with minimal risk provided that proper caution is observed.
Answer:
do you have to turn right at a red light?