Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: According to the english system measurement, 4 cups much is equal to 2 pints, 1 quart, and ¼ of a gallon.
[EX A]: According to the english system measurement, how much is equal to 2 pints, 1 quart, and ¼ of a gallon?

[EX Q]: Some compounds form rigid frameworks called crystals.
[EX A]: Some compounds form rigid frameworks called what?

[EX Q]: A relationship between two human body systems could be the digestive system absorbs nutrients which are transported by the circulatory system.
[EX A]:
Which statement correctly describes a relationship between two human body systems?