TASK DEFINITION: Given a statement, generate a question such that the answer is contained in that statement.
PROBLEM: bats use muscles for flight

SOLUTION: What do bats use for flight?

PROBLEM: bone density decreases when osteoclasts are more active than osteoblasts

SOLUTION: What is more active than osteoblasts?

PROBLEM: teeth make lampreys excellent predators.

SOLUTION:
What kind of predator does teeth make?