user: Question: Which category was William Ivey Long a nominee and Nominated in?
Columns: ['Year', 'Award Ceremony', 'Category', 'Nominee', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2008.0, 'LA Ovation Award', 'Best Book/Lyrics/Music for an Original Musical', 'Dolly Parton and Patricia Resnick', 'Nominated']
SQL:

assistant: SELECT "Category" FROM "Table" WHERE "Result" = 'Nominated' AND "Nominee" = 'William Ivey Long';