user: Question: Name the written by for prod code being 206
Columns: ['#', 'Original title', 'Directed by', 'Written by', 'Original air dates', 'Prod. code']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['1 (21)', '"Face Off, Part 3"', 'Don McCutcheon', 'Rhonda Olson', 'Sept. 3, 1999 Feb. 20, 2000', 201.0]
SQL:

assistant: SELECT "Written by" FROM "Table" WHERE "Prod. code" = 206.0;