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

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


[Q]: You call the separation of ions that occurs when a solid ionic compound dissolves dissociation.
[A]: What do you call the separation of ions that occurs when a solid ionic compound dissolves?


[Q]: 1 is the minimum number of loops a circuit can have.
[A]:
What is the minimum number of loops a circuit can have?