user: Question: How many locations have the callsign DXGH?
Columns: ['Branding', 'Callsign', 'Frequency', 'Power (kW)', 'Station Type', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['DZRH', 'DZRH', '666kHz', '50kW', 'Originating', 'Metro Manila']
SQL:

assistant: SELECT COUNT("Location") FROM "Table" WHERE "Callsign" = 'DXGH';