user: Question: What is the total capacity for coach Trevor Gleeson?
Columns: ['Team', 'Region', 'Coach', 'Home ground', 'Capacity']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Adelaide 36ers', 'SA', 'Scott Ninnis', 'Distinctive Homes Dome', 8000.0]
SQL:

assistant: SELECT SUM("Capacity") FROM "Table" WHERE "Coach" = 'Trevor Gleeson';