Complex sentence: There are six boarding houses within the senior school, these are Crake, Egerton, Raymond, Seymour, Wilberforce and Wilson, with Raymond and Wilberforce being the girls' houses.
Split into simpler sentences: There are six boarding houses within the senior school. These are Crake, Egerton, Raymond, Seymour, Wilberforce and Wilson, with Raymond and Wilberforce being the girls' houses.