Complex sentence: Highbury was founded in 1903 by Sibella Douglas McMillan and is located on the outskirts of the suburb of Hillcrest, overlooking the Valley of a Thousand Hills.
Split into simpler sentences: Highbury was founded in 1903 by Sibella Douglas McMillan. The school is located on the outskirts of the suburb of Hillcrest, overlooking the Valley of a Thousand Hills.