In a certain code language, ‘bike roads highways cars’ is written as ‘od lk sk jk’. ‘jeep scooter highways bus’ is written as ‘mj jk dn ho’, ‘bus cycle link express’ is written as ‘gt fa mj lk’, and ‘express ways without toll’ is written as ‘sk mn ho gt’. What is the code for ‘bus’ in the same language?