user: Question: How many call signs does the location Masinloc, Zambales have?
Columns: ['Branding', 'Callsign', 'Frequency', 'Power (kW)', 'Location']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Hot FM 92.5 Santiago [ citation needed ]', 'DWHT', '92.5MHz', '5kW', 'Santiago City']
SQL:

assistant: SELECT COUNT("Callsign") FROM "Table" WHERE "Location" = 'Masinloc, Zambales';