How many dates have silverstone circuit
CREATE TABLE table_1140103_6 (date VARCHAR, circuit VARCHAR)
SELECT COUNT(date) FROM table_1140103_6 WHERE circuit = "Silverstone"
### Context: CREATE TABLE table_1140103_6 (date VARCHAR, circuit VARCHAR) ### Question: How many dates have silverstone circuit ### Answer: SELECT COUNT(date) FROM table_1140103_6 WHERE circuit = "Silverstone"