user: Question: What type of game was held on December 22?
Columns: ['Date', 'City', 'Opponent', 'Results¹', 'Type of game']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['April 6', 'Marseille , France', 'France', '1:1', "Euro '68 Qualifying"]
SQL:

assistant: SELECT "Type of game" FROM "Table" WHERE "Date" = 'December 22';