user: Question: on how many days did the episode written by Harold Hayes Jr. & Craig S. Phillips originally air
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original Air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [41.0, 1.0, '"Grampires"(Part 1)', 'Neill Fearnley', 'Erik Patterson & Jessica Scott', 'October13,2012']
SQL:

assistant: SELECT COUNT("Original Air date") FROM "Table" WHERE "Written by" = 'Harold Hayes Jr. & Craig S. Phillips';