A studant would like to create a database for their logistic services business. They offer governmental services to their clients such as registry services. They want to keep track of the services they offer, their representatives, and their customers data. Each Service is described by service ID, service description, and type. Each Representative is described by representative No, name, and multiple phones. Each Client is described by a client ID, name, and address that consists of a city and district. Each Client can buy one or more services. And each service can be sold to zero or many clients. Each representative is allowed to provide only one service. And each service can be provided by