user: Question: Where was the California Bowl played with 30,000 attending?
Columns: ['Bowl', 'Score', 'Season', 'Opponent', 'Stadium', 'Location', 'Attendance', 'Head coach']
Types: ['text', 'text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Charity Bowl', 'W 27–26', 1937.0, 'Central Arkansas Bears', 'Los Angeles Memorial Coliseum', 'Los Angeles', '5,000', 'James Bradshaw Category:Articles with hCards']
SQL:

assistant: SELECT "Location" FROM "Table" WHERE "Bowl" = 'California Bowl' AND "Attendance" = '30,000';