In this task, you are given a fact statement and question based on the fact. Your task is to generate the correct answer for the question. The answer needs to be generated using the context fact statement.

[Q]: Fact: a barometer is used to measure air pressure. Question: O2 molecules stacked on top of each other create weight which is then tallied by a?
[A]: barometer

[Q]: Fact: An example of playing a musical instrument is hitting the keys of a piano. Question: A person wants to play a song out yet lacks an instrument, so they can?
[A]: flick a taut rubber band

[Q]: Fact: the thickness of the parts of an organism is an inherited characteristic. Question: A dog that has a very thick tail, that mates with another dog with a thick tail, has a strong likelihood of creating a litter of?
[A]:
dense tailed pups