user: Question: When 2011 is the period and Olympikus is the kit manufacturer how many minor sponsors are there?
Columns: ['Period', 'Kit manufacturer', 'Main sponsor', 'Secondary sponsor', 'Minor sponsors']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1980–84', 'Adidas', 'none', 'none', 'none']
SQL:

assistant: SELECT COUNT("Minor sponsors") FROM "Table" WHERE "Kit manufacturer" = 'Olympikus' AND "Period" = '2011';