user: Question: What s the episode number in the season that was written by Nancy Oliver?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [52.0, 1.0, '"A Coat of White Primer"', 'Rodrigo García', 'Kate Robin', 'June6,2005']
SQL:

assistant: SELECT "No. in season" FROM "Table" WHERE "Written by" = 'Nancy Oliver';