user: Question: What is the original air date when the director is Rowan Woods and the writer is Peter Duncan?
Columns: ['No. in series', 'No. in season', 'Title', 'Director', 'Writer', 'Originalair date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [9.0, 1.0, '"R v Mohammed"', 'Peter Duncan', 'Peter Duncan', '6September2012']
SQL:

assistant: SELECT "Originalair date" FROM "Table" WHERE "Director" = 'Rowan Woods' AND "Writer" = 'Peter Duncan';