TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Seedless and seed are the two divisions of vascular plants.

SOLUTION: What are the two divisions of vascular plants?

PROBLEM: A wall of rocks or concrete a called a groin.

SOLUTION: What is a wall of rocks or concrete called?

PROBLEM: Hydrocarbons are the simplest type of carbon-based compounds.

SOLUTION:
What are the simplest type of carbon-based compounds?