user: Question: For the race held on 10/08/86, what was the circuit?
Columns: ['Date', 'Round', 'Circuit', 'Winning driver', 'Winning team', 'Winning car']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['09/03/86', 'Rd.1', 'Suzuka', 'Keiji Matsumoto', 'Cabin Racing', 'March - Yamaha 86J']
SQL:

assistant: SELECT "Circuit" FROM "Table" WHERE "Date" = '10/08/86';