user: Question: What is the combined crowd in Vancouver on May 22?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Decision', 'Attendance', 'Series']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['May 16', 'Vancouver', '2 – 3', 'Toronto', 'McLean', 15728.0, '0 – 1']
SQL:

assistant: SELECT SUM("Attendance") FROM "Table" WHERE "Home" = 'Vancouver' AND "Date" = 'May 22';