user: ### NOW ANSWER:
Question: What was the production code of the episode written by Brendan Cowell?
Columns: ['Series #', 'Title', 'Director', 'Writer', 'Air Date', 'Production Code']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, '"Laura 2008"', 'Shawn Seet', 'Leah Purcell', 'December4,2009', 101.0]
SQL:

assistant: SELECT "Production Code" FROM "Table" WHERE "Writer" = 'Brendan Cowell';