Complex sentence: Marilyn Isabelle Walker is a Canadian fibre artist, author, teacher and philanthropist, and she is an active contributor to the arts and fine arts across Canada, and at Brock University, St. Catherines in particular.
Split into simpler sentences: Marilyn Isabelle Walker is a Canadian fibre artist, author, teacher and philanthropist. She is an active contributor to the arts and fine arts across Canada and at Brock University in particular.