CREATE TABLE table_2956 ("Vehicle" TEXT, "Operating mode" TEXT, "EPA rated All-electric range" TEXT, "EPA rated combined fuel economy" TEXT, "Clean electric grid California  ( San Francisco ) " TEXT, "U.S. national average electric mix" TEXT, "Dirty electric grid Rocky Mountains  ( Denver ) " TEXT)

What is the operating mode of the Coda?
SELECT "Operating mode" FROM table_2956 WHERE "Vehicle" = 'Coda'
SELECT "Operating mode" FROM "table_2956" WHERE "Vehicle" = 'Coda'