user: Question: Which team has a class of 500cc and rank of 16th?
Columns: ['Year', 'Class', 'Team', 'Points', 'Rank', 'Wins']
Types: ['real', 'text', 'text', 'real', 'text', 'real']
Sample row: [1972.0, '125cc', 'Aermacchi', 2.0, '38th', 0.0]
SQL:

assistant: SELECT "Team" FROM "Table" WHERE "Class" = '500cc' AND "Rank" = '16th';