<Li> <P> Tree of Life at Disney's Animal Kingdom </P> </Li> <P> Tree of Life at Disney's Animal Kingdom </P> <Ul> <Li> Magic Kingdom, opened October 1, 1971 </Li> <Li> Epcot, opened October 1, 1982 </Li> <Li> Disney's Hollywood Studios, opened May 1, 1989 </Li> <Li> Disney's Animal Kingdom, opened April 22, 1998 </Li> </Ul> <Li> Magic Kingdom, opened October 1, 1971 </Li>

What are the four parts of disney world