user: Question: Who was supporting in round 1 where the gt winning car was Dodge Viper?
Columns: ['Rnd', 'Date', 'Circuit', 'Supporting', 'Distance', 'GT Winning Car', 'TC Winning Car']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'March 18', 'Sebring International Raceway , Sebring, Florida', 'American Le Mans Series ( 12 Hours of Sebring )', 'mi (km) (TC) mi (km) (GT)', 'Dodge Viper', 'Acura TSX']
SQL:

assistant: SELECT "Supporting" FROM "Table" WHERE "GT Winning Car" = 'Dodge Viper' AND "Rnd" = 1.0;