Given a statement, generate a question such that the answer is contained in that statement.

[EX Q]: Jaws make sharks, rays, and chimaeras excellent predators
[EX A]: What types of predators do jaws make?

[EX Q]: salpingitis can inhibit mating.
[EX A]: What can inhibit mating?

[EX Q]: Placental mammals house the embryo until it is complete and birth large and mature offspring.
[EX A]:
Where do placental mammals house until it is complete and births large and mature offspring?