user: Question: When the elevator was Innocent IV what was the nationality?
Columns: ['Elector', 'Nationality', 'Order and title', 'Elevated', 'Elevator']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['João Pedro Julião', 'Portuguese', 'Cardinal-Bishop of Frascati', 'June 3, 1273', 'Gregory X']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Elevator" = 'Innocent IV';