Complex sentence: Chandler assisted teammate Nate Robinson in the dunk contest during the All-Star weekend in the dunk Nate Robinson used Chandler's back as a trampoline to dunk the basketball.
Split into simpler sentences: Chandler assisted teammate Nate Robinson in the dunk contest during the All-Star Weekend. In the dunk, Nate Robinson used Chandler's back as a trampoline to dunk the basketball.