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

[EX Q]: Deletions remove one or more nucleotides from the dna
[EX A]: Deletions remove one or more what from the dna?

[EX Q]: Water, air, and milk list includes only examples of matter that can take the shape of a container.
[EX A]: Which list includes only examples of matter that can take the shape of a container?

[EX Q]: In machines that increase force, such as ramps and doorknobs and nutcrackers, output is greater is the relation between output and input force.
[EX A]:
In machines that increase force, such as ramps and doorknobs and nutcrackers, what is the relation between output and input force?