Complex sentence: Some graduates continue their education in-state at University of Oklahoma, Oklahoma State University, at one of the many other schools in Oklahoma, or in recent years West Point, Princeton University, Trinity University (Texas), and Yale University.
Split into simpler sentences: Some graduates continue their education at University of Oklahoma, Oklahoma State University, or other establishments in Oklahoma. In recent yearssome have gone to West Point, Princeton University, Trinity University (Texas) and Yale University.