user: Question: How many years have a Result of nominated?
Columns: ['Year', 'Award', 'Category', 'Role', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2008.0, 'Variety Club Showbiz Awards', 'Outstanding Newcomer', 'Merlin in Merlin', 'Won']
SQL:

assistant: SELECT COUNT("Year") FROM "Table" WHERE "Result" = 'nominated';