user: Question: What is the date of the Zolder circuit, which had A.Z.K./ROC-Compétition A.Z.K./ROC-Compétition as the winning team?
Columns: ['Round', 'Circuit', 'Date', 'Winning driver', 'Winning team']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1 2', 'Zolder', '5 May', 'Emanuele Pirro Emanuele Pirro', 'A.Z.K./ROC-Compétition A.Z.K./ROC-Compétition']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Winning team" = 'A.Z.K./ROC-Compétition A.Z.K./ROC-Compétition' AND "Circuit" = 'Zolder';