user: Question: What is the high capacity that has an average under 489 and a highest over 778?
Columns: ['Team', 'Stadium', 'Capacity', 'Highest', 'Lowest', 'Average']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Ross County', 'Victoria Park', 6700.0, 3716.0, 1511.0, 2247.0]
SQL:

assistant: SELECT "Capacity" FROM "Table" WHERE "Average" < 489.0 AND "Highest" > 778.0;