Complex sentence: St. Barnabas High School, an all-girls school which opened in 1928 is run by principal Sr. Joan Farone, R.J.M. The high school has since been independent from the parish as of September 2015.
Split into simpler sentences: St. Barnabas High School, an all-girls school which opened in 1928. At present, Sr. Joan Farone is the principal and it has since been independent from the parish as of September 2015.