CREATE TABLE table_56781 ("Driver" TEXT, "Constructor" TEXT, "Laps" TEXT, "Time/Retired" TEXT, "Grid" TEXT)

What is the Time/Retired value for Driver Johnny Herbert with Constructor Benetton - Renault
SELECT "Time/Retired" FROM table_56781 WHERE "Constructor" = 'benetton - renault' AND "Driver" = 'johnny herbert'
SELECT "Time/Retired" FROM "table_56781" WHERE "Constructor" = 'benetton - renault' AND "Driver" = 'johnny herbert'