You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

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.
Solution: is confectionary sugar the same as powdered sugar?
Why? The question is a yes/no question, and it is answerable based on the given passage.

New input: Under federal law, airsoft guns are not classified as firearms and are legal for all ages. People under the age of 18 are not permitted to buy airsoft guns over the counter in stores. However, a person of any age may use one (with the permission of their parents, of course, for anyone under 18). This is also the case for the laws in each state. However, in some major cities, the definition of a firearm within their respected ordinances includes propulsion by spring or compressed air, thus making airsoft subject to applicable laws. For example, airsoft guns within the state of California can only be bought by a person above the age of 18. However, no laws indicate an age requirement to sell airsoft guns. Generally speaking, toy, look-alike, and imitation firearms must have an orange tip during shipping and transportation.
Solution:
do you have to be 18 to buy airsoft guns?