user: Question: What is the nickname of the team that has the colors Blue and Gold?
Columns: ['School', 'Nickname', 'Colors', 'League', 'Class', 'Division']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Alexis I. duPont High School', 'Tigers', 'Blue and Yellow', 'DSHA', 'Flight A', 'Division 1']
SQL:

assistant: SELECT "Nickname" FROM "Table" WHERE "Colors" = 'Blue and Gold';