user: Question: What is the dma of branding is Big Oldies 107.3 with the station WARV-FM?
Columns: ['DMA', 'Market', 'Station', 'Frequency', 'Branding', 'Format']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [53.0, 'Louisville, KY', 'WGZB-FM', '96.5', 'B96.5', 'Urban']
SQL:

assistant: SELECT "DMA" FROM "Table" WHERE "Branding" = 'Big Oldies 107.3' AND "Station" = 'WARV-FM';