user: Question: What is the Nominee from the Category that is Best Costume Design?
Columns: ['Year', 'Award', 'Category', 'Nominee', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1991.0, 'Laurence Olivier Award', 'Best New Musical', 'Best New Musical', 'Nominated']
SQL:

assistant: SELECT "Nominee" FROM "Table" WHERE "Category" = 'Best Costume Design';