user: Question: List the series number for season 12.
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (millions)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [230.0, 1.0, '"Shock Waves"', 'Alec Smight', 'David Weddle & Bradley Thompson', 'September23,2010', '14.69']
SQL:

assistant: SELECT "No. in series" FROM "Table" WHERE "No. in season" = 12.0;