user: Question: Where is the transmitter located for the station Voice of Vietnam
Columns: ['Frequency', 'Station', 'Operator', 'Country of origin', 'Transmitter location', 'Format']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['5.965MHz (SW)', 'Radio Klasik', 'RTM', 'Malaysia', 'IBC , Malaysia', 'News and Music']
SQL:

assistant: SELECT "Transmitter location" FROM "Table" WHERE "Station" = 'Voice of Vietnam';