user: Question: What is the additional major sponsor(s) that has Red as its main color after 1991?
Columns: ['Year', 'Main colour(s)', 'Additional colour(s)', 'Main sponsor(s)', 'Additional major sponsor(s)']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1988.0, 'Red', 'Black, White', 'Marlboro', 'Viacom, Nikols']
SQL:

assistant: SELECT "Additional major sponsor(s)" FROM "Table" WHERE "Main colour(s)" = 'Red' AND "Year" > 1991.0;