user: Question: who directed the movie written by is Sib Ventress / Aydrea ten Bosch
Columns: ['Episode #', 'Production code', 'Title', 'Directed by', 'Written by', 'Airdate']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [27.0, 201.0, '"Deja Foo"', 'Mark Ackland', 'Sib Ventress', 'March17,2008']
SQL:

assistant: SELECT "Directed by" FROM "Table" WHERE "Written by" = 'Sib Ventress / Aydrea ten Bosch';