user: ### NOW ANSWER:
Question: Tell me the sum of closed for city of Pittsburgh and capacity larger than 59000
Columns: ['Stadium', 'Capacity', 'City', 'State/Province', 'Closed']
Types: ['text', 'real', 'text', 'text', 'real']
Sample row: ['John F. Kennedy Stadium', 100000.0, 'Philadelphia', 'Pennsylvania', 1992.0]
SQL:

assistant: SELECT SUM("Closed") FROM "Table" WHERE "City" = 'Pittsburgh' AND "Capacity" > 59000.0;