Give an real$-$world example of how Venn Diagrams could be used to classify something. Give an example of a Union, an Intersection, and a Complement.

Example: U is the universal set of faculty at CACC. Set A consists of all dog owners. Set B consists of all cat owners. The intersection of A and B is all CACC faculty who own both a dog and a cat. The Union of A and B is all faculty who own either a dog or a cat, or both. The Complement of A U B is all CACC faculty who own neither a dog nor a cat