A transport company needs to model their activities. There are two types of employees in the company: drivers and operators. For drivers it is interesting to know the date of issue and type of the driving license, and the date of issue of the taxi drivers certificate. For all employees it is interesting to know their personal number, address and the available phone numbers. The company owns a number of transport. For each transport, there is a need to know its type, year of manufacturing, and date of the last service. There are two types of transport commonly booked by the customers that are MPV and Saloon. There are also other types of transports that the company provides to the customers. The company wants to have a record of car trips. A transport may be picked on a street or ordered through an operator who assigns the order to a certain driver and a car. Departure and destination addresses together with times should also be recorded.

Draw an enhanced entity relationship diagram in UML notation.