Complex sentence: Deaconess Hospital is a hospital in Oklahoma City, Oklahoma that is affiliated with (Community Health Systems, out of Nashville, TN) until April 2005,Deaconess was the only independent hospital operating in the Oklahoma City metropolitan area.
Split into simpler sentences: Deaconess Hospital is a hospital in Oklahoma City, Oklahoma that is affiliated with Community Health Systems. Until April 2005, Deaconess was the only independent hospital operating in the Oklahoma City metropolitan area.