Complex sentence: On the northwest corner of the intersection is the former Cathedral High School building, which is called the De Paul campus in honor of St. Vincent de Paul, which currently houses freshman lockers and the history, visual and performing arts, and modern language departments.
Split into simpler sentences: On the northwest corner of the intersection is the former Cathedral High School building, which is called the De Paul campus in honor of St. Vincent de Paul. It currently houses freshman lockers and the history, visual and performing arts, and modern language departments.