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

[EX Q]: The vascular structure functions as a framework that reinforces the shape of the leaf.
[EX A]: What functions as a framework that reinforces the shape of the leaf?

[EX Q]: Tornadoes can occur in any.
[EX A]: At what time of the year can tornadoes occur?

[EX Q]: During the first year after birth, a baby called a(n) infant.
[EX A]:
During the first year after birth, what is a baby called?