Exercise $3($explain all steps in detail please$)$: Complete the class diagram.

Suppose we are building a system tracking various plants spread in municipailities. Each individual plant is

located in some municipality, whereas a municipality may contain any number of plants $($zero plants is also

a possibility$).$ A plants can be either a tree or a moss.

Let's assume that the administrative unit under the municipality is called "district". In addition, there are

usually several settlements $($villages$,$ cities, etc.$)$ in a municipality, which can possibly be located across

a border in two municipalities. The district is a bureaucratic classification, the settlement a real existing

construct. One of these relationships is an aggregation, the other a composition. Why?

Consider the following partial UML class diagram:

Complete the missing relationships based on the narrative above. Identify aggregation and compisition.

Argue why one of the relations is aggregation $($which one?$)$ and the other composition $($which one?$).$