Complex sentence: Mark and Rhea have three children a daughter, Ella Rae, born September 2,2003, a son Michael, born March 22,2006 and she is expecting their third child, a boy, due in September 2008.
Split into simpler sentences: Mark and Rhea have a daughter, Ella Rae, born September 2,2003. They have a son Michael, born March 22,2006 and she is expecting their third child, a boy, due in September 2008.