$3\mathrm{.}1$ Consider the relational database below:

A Company is defined by: $($CName$($which is a primary key$)\_,$ City and Location$).$ Location attribute is classified as a multivalued attribute. The Company contains many departments.

Each department can be defined by: $($Did $($which is a primary key$),$ Dname, and Building$).$ A department should belong to a company.

In each department, there are a lot of Employees, and many Employees can work Anferent departments $($helshe was hired to department on a specific date$).$ An Emplary$).$

Draw a complete Entity Relationship $($E$-$R$)$ diagram? $(5$ Points$).$