user: Question: What was Radio Mexicana's website?
Columns: ['Frequency', 'Callsign', 'Brand', 'City of License', 'Website', 'Webcast']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [530.0, 'WPMQ285', 'TxDOT HAR', 'Laredo', '•', '•']
SQL:

assistant: SELECT "Website" FROM "Table" WHERE "Brand" = 'Radio Mexicana';