user: Question: How many episodes have the title "Revenge of the Mummy"?
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original U.S. air date', 'Prod. code']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [2.0, '"Beach Bully Bingo"', 'David Kendall', 'Matt Wickline', 'September22,2010', 105.0]
SQL:

assistant: SELECT COUNT("Original U.S. air date") FROM "Table" WHERE "Title" = '"Revenge of the Mummy"';