$(14$ marks$)$ Create $($Draw$)$ a class diagram for the above system

The following system description forms the basis for the remaining questions:

You are starting an outdoors services business. In the summer your employees will be mowing lawns and in

the winter they will be clearing snow. All year round they will be trimming trees.

Some employees can do all three tasks; however since trimming trees requires specialized training, not all

employees will be able to do it$.$

Customers will be signing contacts with your company for each of the tasks. For snow clearing you will be

charging $$1$ per square meter of snow cleared per visit, and for lawn mowing you will charge $5$ cents per

square meter. You give a $50\%$ discount for people willing to sign up for regular snow clearing or lawn

mowing for an entire season.

Each day you dispatch crews to do the required work. Employees have to sign out snow plow trucks, snow

blowers, shovels, lawn mowers and tree trimming kits. Tree trimming is always done in crews of two people;

snow clearing is always done individually.