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: When University of Wisconsin sociologist Michael Bell and his graduate students attempted to determine the origin of Thousand Island dressing in 2010, they found that the story differed among villages and islands in the Thousand Islands region. They discovered the existence of a third origin story in which the original recipe was based upon French dressing, which is supported by a recipe published in the 11th edition of The Fannie Farmer Cookbook (1965). All the claims appeared to be based upon oral traditions without supporting written records.
Student:
is thousand island dressing the same as french dressing?