In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
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Question: Gutenberg in 1439 was the first European to use movable type. Among his many contributions to printing are: the invention of a process for mass-producing movable type; the use of oil-based ink for printing books; adjustable molds; mechanical movable type; and the use of a wooden printing press similar to the agricultural screw presses of the period. His truly epochal invention was the combination of these elements into a practical system that allowed the mass production of printed books and was economically viable for printers and readers alike. Gutenberg's method for making type is traditionally considered to have included a type metal alloy and a hand mould for casting type. The alloy was a mixture of lead, tin, and antimony that melted at a relatively low temperature for faster and more economical casting, cast well, and created a durable type.

Answer: who developed the first printing press in 1430

Question: Bumblebee is a fictional character from the Transformers franchise. In most incarnations, Bumblebee is a small, yellow (with black stripes) Autobot with most of his alternative vehicle modes inspired by several generations of the Chevrolet American muscle cars (with the live-action film versions being very real Camaros: the original vehicle mode was based on a classic European Type 1 Volkswagen Beetle). The characters and related events are described, below, using in-universe tone. He is named after a genus of bee which inspired his paint scheme.

Answer: what type of car is bumblebee in transformers 1

Question: A muzzle brake or recoil compensator is a device connected to the muzzle of a firearm or cannon that redirects propellant gases to counter recoil and unwanted rising of the barrel. The concept was first introduced for artillery and was a common feature on many anti-tank guns, especially those mounted on tanks, in order to reduce the area needed to take up the strokes of recoil and kickback. They have been used in various forms for rifles and pistols to help control recoil and the rising of the barrel that normally occurs after firing. They are used on pistols for practical pistol competitions, and are usually called compensators in this context.

Answer:
what does a compensator do for a gun