TASK DEFINITION: In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
PROBLEM: What are freshmen called at the air force academy?

SOLUTION: Fourth class cadets

PROBLEM: What class of food does egg belong to?

SOLUTION: Meats and beans

PROBLEM: How many mcdonalds are in the us 2018?

SOLUTION:
13,905