Complex sentence: Palpatine then tells Anakin to kill Dooku on the spot; after initial hesitation, Anakin brutally decapitates Dooku, an act that sets off a chain of events that leads to Anakin's fall to the dark side and transformation into Darth Vader.
Split into simpler sentences: Palpatine then tells Anakin to kill Dooku on the spot; after initial hesitation, Anakin brutally decapitates Dooku. This act sets off a chain of events that leads to Anakin's fall to the dark side and transformation into Darth Vader.