Question: "The Dirty Half Dozen", the nineteenth episode of the second season of an American television series based on what Marvel Comics organization, a fictional espionage, special law-enforcement, and counter-terrorism agency appearing in American comic books published by Marvel Comics?
{'answer': 'S.H.I.E.L.D.', 'supporting_facts': [['The Dirty Half Dozen', 0], ['S.H.I.E.L.D.', 0]]}