Question: "Two Dozen and One Greyhounds" was written by Mike Scully and guest starred Frank Welker as a pet greyhound who was introduced in a special called what?
{'answer': 'Simpsons Roasting on an Open Fire', 'supporting_facts': [['Two Dozen and One Greyhounds', 0], ['Two Dozen and One Greyhounds', 2], ['Two Dozen and One Greyhounds', 3], ["Santa's Little Helper", 0], ["Santa's Little Helper", 1], ["Santa's Little Helper", 2]]}