Generate a question about the following movie plot: The film takes place on Thra, a planet with three suns; the Great Sun, the Rose Sun and the Dying Sun. Many creatures and races inhabit the planet but the dominant race is the urSkeks who are the guardians of the Crystal of Truth. The Crystal harnesses the forces of nature, especially the light of the three suns, for the benefit of all on Thra.One thousand years before the beginning of the movie, the urSkeks cracked the Crystal of Truth, and split into two races during the Great Conjunction of the three suns - the hunchbacked, gentle beings known as Mystics (or urRu in the original drafts and novelization), and the vulture-like, cruel bipedal beings known as Skeksis. In that moment the Crystal became the Dark Crystal. The Skeksis drove the Mystics from the castle, where the shattered crystal resides, and instituted a reign of terror over their world. Their wrath was particularly directed toward the elf-like Gelflings due to a prophecy that promised the restoration of the crystal and the end of the Skeksis' power by a Gelfling. The prophecy, rediscovered in an ancient Gelfling city, read:When single shines the triple sun, What was sundered and undone Shall be whole, the two made one, By Gelfling hand, or else by none.Jen believes he is the last of the Gelflings. After his parents were killed by the crustacean-like Garthim commanded by the Skeksis, he is raised in a lush valley in which the Mystics reside. The Mystic Master who taught and raised him him is dying, and he calls Jen to his side to reveal that his destiny is to "heal" the crystal by replacing the crystal shard. He tells Jen that the crystal shard can be found at Aughra's observatory. The emperor of the Skeksis dies at the same time that the Master does. In a duel over the succession called Haakskeekah (trial by stone), the Chamberlain SkekSil is defeated by SkekUng, the Garthim Master, and is banished and driven from the palace in rags.Jen reaches Aughra, a wise woman character of unknown species, and discovers the actual crystal shard by playing...
Answer:
Who wins the duel?