user: Question: How many basketball arenas are there that belong to a school with a capacity of 3,000?
Columns: ['School', 'Baseball stadium', 'Softball stadium', 'Basketball arena', 'Capacity']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Eastern Connecticut', 'Eastern Baseball Stadium', 'Spector Field', 'Geissler Gymnasium', '3,300']
SQL:

assistant: SELECT COUNT("Basketball arena") FROM "Table" WHERE "Capacity" = '3,000';