Suppose we informally define the data in the database of a deportment ritore as follews:

$(7)$ Eact imployu is replesented. The datis about an empley u consist of employe number, mame, coldthess the departmint that he worts for.

$(3)$ Each department is reprisented. The data about ol youtment. consint of in name, employ us$,$ manager & itumn sold

$($i$5)$ Eoch ifem sold is represented. The data abut itum sold consis If its name, manufacturur, price, model No $($asioned by the manufacturer$)$ &f an internal item number $($ansigued by the store$).$

$(11)$ Each manufactures is represented. The dath about manufactios consist of it name, address, item supplied to the store & thie phices.

Give an entity relationship $(E-R)$ diagham for this database.