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: Cancers that arise in epithelial tissue are termed?

SOLUTION: Carcinoma

PROBLEM: How many episodes are in season 4 of agents of shield?

SOLUTION: 22

PROBLEM: When did the tv show mash first air?

SOLUTION:
September 17 , 1972