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

[EX Q]: Most of the gray matter is on the surface of the brain, surrounding white matter.
[EX A]: Most of the gray matter is on the surface of the brain, surrounding what other type of matter?

[EX Q]: Chordates include vertebrates and invertebrates that have a notochord.
[EX A]: Chordates include vertebrates and invertebrates that have what?

[EX Q]: A bee will sometimes do a dance to tell other bees in the hive where to find food.
[EX A]:
A bee will sometimes do a dance to tell other bees in the hive where to find what?