Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Ex Input:
Compounds containing an atom of nitrogen element, bonded in a hydrocarbon framework, are classified as amines.

Ex Output:
Compounds containing an atom of what element, bonded in a hydrocarbon framework, are classified as amines?


Ex Input:
At a convergent plate boundary, when one plate is oceanic, there are large volcanoes.

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


Ex Input:
Layer of slime a host attacks a parasitic bacteria, the bacteria release what to surround the cell wall.

Ex Output:

When a host attacks a parasitic bacteria, the bacteria release what to surround the cell wall?