Complex sentence: There are over 125 students who have graduated with a full International Baccalaureate (IB), which is a rigorous program that is recognized all over the world and helps prepare Princeton graduates for our global economy.
Split into simpler sentences: There are over 125 students who have graduated with a full International Baccalaureate (IB). This rigorous program is recognized all over the world and helps prepare Princeton graduates for our global economy.