TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: At a convergent plate boundary, when one plate is oceanic, there are large volcanoes.

SOLUTION: At a convergent plate boundary, when one plate is oceanic, there are large what?

PROBLEM: Some gametophytes develop underground and form mycorrhizal associations with fungi.

SOLUTION: Some gametophytes develop underground and form mycorrhizal associations with what?

PROBLEM: Allolactose inducer turns on the expression of the lac genes.

SOLUTION:
Which inducer turns on the expression of the lac genes?