TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Cancer occurs most often in adults over fifty age.

SOLUTION: Cancer occurs most often in adults over what age?

PROBLEM: Hybridization model model helps explain molecules with double or triple bonds.

SOLUTION: Which model helps explain molecules with double or triple bonds?

PROBLEM: Bathymetric maps are topographic maps that show water depths called.

SOLUTION:
What are topographic maps that show water depths called?