Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the vaulting events, gymnasts sprint down a 25 metres (82 ft) runway, jump onto a spring filled board or perform a roundoff, or handspring entry onto a springboard (run/ take-off segment), land momentarily, inverted on the hands on the vaulting horse, or vaulting table (pre flight segment), then propel themselves forward or backward, off of this platform to a two footed landing (post flight segment). Every gymnast starts at a different point on the vault runway depending on their height and strength. The post flight segment may include one or more multiple saltos or somersaults, and/or twisting movements. A round-off entry vault, called a Yurchenko, is the most common vault in elite level gymnastics. When performing a yurchenko, gymnasts "round-off" so hands are on the runway while the feet land on the springboard (beatboard). From the roundoff position the gymnast travels backwards and executes a backhandspring so that the hands land on the vaulting table. The gymnast then blocks off the vaulting platform into various twisting and/or somersaulting combinations. The post flight segment brings the gymnast to her feet.
What is the most common vault in elite level gymnastics?
A: yurchenko

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Incandescent light bulbs consist of an air-tight glass enclosure (the envelope, or bulb) with a filament of tungsten wire inside the bulb, through which an electric current is passed. Contact wires and a base with two (or more) conductors provide electrical connections to the filament. Incandescent light bulbs usually contain a stem or glass mount anchored to the bulb's base that allows the electrical contacts to run through the envelope without air or gas leaks. Small wires embedded in the stem in turn support the filament and its lead wires.
What function do small wires in a light bulb's stem perform?
A: Small wires embedded in the stem in turn support the filament and its lead wires

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The Crimean campaign opened in September 1854. 360 ships sailed in seven columns, each steamer towing two sailing ships.:422 Anchoring on 13 September in the bay of Eupatoria, the town surrendered and 500 Marines landed to occupy it. This town and bay would provide a fall back position in case of disaster.:201 The ships then sailed east to make the landing of the allied expeditionary force on the sandy beaches of Calamita Bay on the south west coast of the Crimean Peninsula. The landing surprised the Russians, as they had been expecting a landing at Katcha; the last minute change proving that Russia had known the original battle plan. There was no sign of the enemy and the men were all landed on 14 September. It took another four days to land all the stores, equipment, horses and artillery.
360 ships landed in what bay?
A: bay of Eupatoria

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The Middle Triassic spans from 247 million to 237 million years ago. The Middle Triassic featured the beginnings of the breakup of Pangaea, and the beginning of the Tethys Sea. The ecosystem had recovered from the devastation that was the Great Dying. Phytoplankton, coral, and crustaceans all had recovered, and the reptiles began to get bigger and bigger. New aquatic reptiles evolved such as Ichthyosaurs and Nothosaurs. Meanwhile, on land, Pine forests flourished, bringing along mosquitoes and fruit flies. The first ancient crocodilians evolved, which sparked competition with the large amphibians that had since ruled the freshwater world.
Pine forests brought about the demise of what insects?
A:
unanswerable