title: Cybertron
context: Cybertron is a fictional planet, the homeworld of the Transformers in the various fictional incarnations of the metaseries and toyline by Hasbro.[1]   In the Japanese series, the planet is referred to as "Cybertron" (first shown on Japanese Galaxy Force packaging, although "Cybertron" is the Japanese name for "Autobot") pronounced as Sabertron セイバートロン Seibātoron.[2] Cybertron is populated by mechanical self-configuring modular lifeforms of variable size who can transform into all kinds of machinery. These are called Cybertronians, or Transformers.[3]
question: In what fictional work does the planet Cybertron feature?
answers: Transformers