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

Ex Input:
The pressure of a sample of gas is measured with an open-end manometer.

Ex Output:
The pressure of a sample of gas is measured with an open-end what?


Ex Input:
Chewing insects such as dragonflies and grasshoppers have two many sets of jaws.

Ex Output:
Chewing insects such as dragonflies and grasshoppers have how many sets of jaws?


Ex Input:
The amniotic egg first evolved in reptiles.

Ex Output:

The amniotic egg first evolved in what species?