Table: radio_stations_6
Columns: dma
market
station
frequency
branding
format

Question: What is the dma when the format is rhythmic contemporary?
SQL: SELECT MIN("dma") FROM radio_stations_6 WHERE "format" = 'Rhythmic Contemporary'

Question: Which frequency is station wlfv-fm?
SQL: SELECT "frequency" FROM radio_stations_6 WHERE "station" = 'WLFV-FM'

Question: Which station has the frequency of 107.3?
SQL: SELECT "station" FROM radio_stations_6 WHERE "frequency" = '107.3'

Question: What is dma?
SQL: SELECT MIN("dma") FROM radio_stations_6

Question: What is the dma of branding is big oldies 107.3 with the station warv-fm?
SQL: SELECT "dma" FROM radio_stations_6 WHERE "branding" = 'Big Oldies 107.3' AND "station" = 'WARV-FM'

Question: Which branding has the format of southern country?
SQL: SELECT "branding" FROM radio_stations_6 WHERE "format" = 'Southern Country'