user: Question: What is the order number of the Billboard Hot 100 Hits theme and the original artist was Sixpence None the Richer?
Columns: ['Week #', 'Theme', 'Song choice', 'Original artist', 'Order #', 'Result']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Audition', "Auditioner's Choice", '" Over the Rainbow "', 'Judy Garland', 'N/A', 'Advanced']
SQL:

assistant: SELECT "Order #" FROM "Table" WHERE "Theme" = 'Billboard Hot 100 Hits' AND "Original artist" = 'Sixpence None the Richer';