Complex sentence: She went to St. Theresa's College, Quezon City, from prep school until the 6th Grade, after which she went to the main campus of the Philippine Science High School and then to the University of the Philippines where she majored in Comparative Literature.
Split into simpler sentences: She went to St. Theresa's College, Quezon City, from prep school until 6th Grade. After which, she went to the main campus of the Philippine Science High School then to the University of the Philippines and majored in Comparative Literature.