user: Question: Who is the Wednesday presenter of the show Big Brother 13?
Columns: ['Series', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Celebrity Big Brother 8', 'Emma Willis Jamie East', 'Emma Willis', 'Emma Willis', 'Emma Willis', 'Emma Willis Jamie East', 'Alice Levine Jamie East', 'Alice Levine Jamie East']
SQL:

assistant: SELECT "Wednesday" FROM "Table" WHERE "Series" = 'Big Brother 13';