Complex sentence: When the school first opened there were only freshmen and the students went to school at 15941 Cardinal Drive in Woodbridge, Virginia, what is now the Dr. A.J. Ferlazzo Building.
Split into simpler sentences: When the school first opened there were only freshmen and the students went to school. Originally the campus was located at 15941 Cardinal Drive (Woodbridge address), what is now the Dr. A. J. Ferlazzo Building.