input: Background: A function problem is a computational problem where a single output (of a total function) is expected for every input, but the output is more complex than that of a decision problem, that is, it isn't just yes or no. Notable examples include the traveling salesman problem and the integer factorization problem.
  Question: A function problem is an example of what?
  Answer:<extra_id_0>.
output: <extra_id_0> a computational problem<extra_id_1>