Complex sentence: Brantford Collegiate Institute and Vocational School, also known as Brantford Collegiate Institute (BCI), is a secondary school in the city of Brantford, and is in the Grand Erie District School Board, a medium-sized school board in the Province of Ontario.
Split into simpler sentences: Brantford Collegiate Institute and Vocational School, also known as simply Brantford Collegiate Institute (BCI), is a secondary school in the city of Brantford. Its activity is overseen by the Grand Erie District School Board, a medium-sized school board in the Province of Ontario.