Teacher: You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Teacher: Now, understand the problem? If you are still confused, see the following 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.
Solution: is confectionary sugar the same as powdered sugar?
Reason: The question is a yes/no question, and it is answerable based on the given passage.

Now, solve this instance: The Battle of Thermopylae has remained a cultural icon of western civilization ever since it was fought. The battle is revisited in countless adages and works of popular culture, such as in films (e.g., The 300 Spartans (1962) and 300 (2007), based on the events during and close to the time of the battle), in literature, in song, in television programs, and in video games. The battle is also discussed in many articles and books on the theory and practice of warfare.
Student:
was the movie 300 based on real events?