1 = my hotel 2 = this restaurant 3 = the airport 4 = the train station 5 = the bus station 6 = the hospital 7 = the embassy or consulate 8 = the main shopping area 9 = the town centre. So 18/47 asks that the person be taken to the embassy or consulate. In the same way 18/49 asks to be taken to the town centre. The use of the extra digit allows for greater specificity in the request.