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

Ex Input:
Pibb Xtra, formerly called Mr. Pibb (sometimes styled as Mr. PiBB), is a soft drink marketed by The Coca-Cola Company. As of 2012, it is sold only in the United States, except in areas where Dr Pepper is distributed by the local Coca-Cola bottler. It is available in Canada through Coca-Cola Freestyle machines.

Ex Output:
is mr pibb the same as pibb xtra?


Ex Input:
A mule is the offspring of a male donkey (jack) and a female horse (mare). Horses and donkeys are different species, with different numbers of chromosomes. Of the two F1 hybrids (first generation hybrids) between these two species, a mule is easier to obtain than a hinny, which is the offspring of a female donkey (jenny) and a male horse (stallion).

Ex Output:
is a mule a cross between a horse and a donkey?


Ex Input:
In mathematics, and more specifically set theory, the empty set or null set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set; in other theories, its existence can be deduced. Many possible properties of sets are vacuously true for the empty set.

Ex Output:

is an empty set an element of an empty set?


