Complex sentence: Currently, there are four MAC classes in Vancouver, B.C., Canada that are administered by the Vancouver School Board and are located in Lord Nelson Elementary School, Tecumseh Elementary School, Sir William Osler Elementary School, and Queen Mary Elementary School.
Split into simpler sentences: Currently, there are four schools with MAC classes in Vancouver, B.C., Canada that are administered by the Vancouver School Board. These schools are Lord Nelson Elementary School, Tecumseh Elementary School, Sir William Osler Elementary School, and Queen Mary Elementary School.