Xiao Tao takes bus No.6 and gets off at the library after three stops. Where did he get on the bus?
(1) Bus No.6 starts from the railway station and reaches the library in the northeast. (2) From the library to the hospital in the east, and then to the Children's Palace in the southeast. (3) The distance from the Children's Palace to the central square is 5cm, and the scale of this drawing is 5cm: 4km = 5cm:. So the answer is: north, east 50, due east, south, east 50, 1: 80000.