Complex sentence: Outside of the U.S. and Canada, Ramada hotels are owned, operated or franchised by Ramada International which until recently was owned by rival hotel operator Marriott International but was purchased in 2004 by Cendant Corporation, giving Cendant the worldwide rights to the Ramada name.
Split into simpler sentences: Outside of the U.S. and Canada, Ramada hotels are owned and operated or franchised by Ramada International, which until recently, was owned by rival hotel operator Marriott International. However, in 2004, Ramada International was purchased by Cendant Corporation, giving Cendant the worldwide rights to the Ramada name.