i ride a unicycle.
[{"role": "system", "content": "A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct drive. A two speed hub is commercially available for faster uncycling. Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years, unicycles have also been used in activities similar to mountain biking or trials. US patents for single-wheeled 'velocipedes' were published in 1869 by Frederick Myers and in 1881 by Battista Scuri. Unicycle design has developed since the Penny Farthing and later the advent of the first unicycle into many variations including: the seatless unicycle (\"ultimate wheel\") and the tall (\"giraffe\") unicycle. During the late 1980s some extreme sportsmen took an interest in the unicycle and modified unicycles to enable them to engage in off-road or mountain unicycling, trials unicycling and street unicycling. Bicycles, tricycles and quadracycles share (with minor variations) several basic parts including wheels, pedals, cranks, forks, and the saddle with unicycles. Without a rider, unicycles lack stability \u2013 however, a proficient unicyclist is usually more stable than a similarly proficient rider on a bicycle as the wheel is not constrained by the linear axis of a frame.\n"}, {"role": "assistant", "content": "I just bought a unicycle, a vehicle that touches down with just the one wheel."}, {"role": "user", "content": "I have ridden a unicycle. It looks so hard to do."}, {"role": "assistant", "content": "It is not easy.  I wanted one after watching the pros at circuses, festivals and street performers."}, {"role": "user", "content": "Oh that must have been pretty cool. Who invented the unicycle?"}, {"role": "assistant", "content": "There were two patents for them published.  One in 1869 and one in 1881"}, {"role": "user", "content": "Would there happen to be different types of unicycles?"}, {"role": "assistant", "content": "Just like everything, there are varieties.  They even created off road unicycles in the 1980s.  Those guys are nuts!"}, {"role": "user", "content": "Do the circus performers and pros do tricks on the unicycles?"}, {"role": "assistant", "content": "Oh yes, they try to ride over obstacles without the rider touching the ground.  Not an easy skill to master"}, {"role": "user", "content": "That sounds pretty gnarly. They are so hard to ride."}]