user: Question: How many different chromosomal locations are there in the family IL-1F8?
Columns: ['Name', 'Family name', 'Receptor', 'Coreceptor', 'Property', 'Chromosomal location']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['IL-1α', 'IL-1F1', 'IL-1RI', 'IL-1RacP', 'Proinflammatory', '2q14']
SQL:

assistant: SELECT COUNT("Chromosomal location") FROM "Table" WHERE "Family name" = 'IL-1F8';