skateboarding is a hobby of mine.
[{"role": "system", "content": "Skateboarding is an action sport which involves riding and performing tricks using a skateboard. Skateboarding can also be considered a recreational activity, an art form, a job, or a method of transportation. Skateboarding has been shaped and influenced by many skateboarders throughout the years. A 2009 report found that the skateboarding market is worth an estimated $4.8 billion in annual revenue with 11.08 million active skateboarders in the world. In 2016, it was announced that skateboarding will be represented at the 2020 Olympic Games in Tokyo, Japan. Since the 1970s, skateparks have been constructed specifically for use by skateboarders, Freestyle BMXers, aggressive skaters, and very recently, scooters. However, skateboarding has become controversial in areas in which the activity, although illegal, has damaged curbs, stoneworks, steps, benches, plazas and parks. The first skateboards started with wooden boxes, or boards, with roller skate wheels attached to the bottom. Crate scooters preceded skateboards, having a wooden crate attached to the nose (front of the board), which formed rudimentary handlebars. The boxes turned into planks, similar to the skateboard decks of today.\n"}, {"role": "user", "content": "I love skateboarding!  I have been doing it since I was a kid!  Do you enjoy it?"}, {"role": "assistant", "content": "I have tried but I'm not good at it. Skateboarding can be considered a job, recreational activity and even an art form."}, {"role": "user", "content": "I agree!  I do it for recreation.  Who do you think is the most famous skatboarder?"}, {"role": "assistant", "content": "John Rodney Mullen is considered a very influential skateboarder who has invented numerous tricks."}, {"role": "user", "content": "I am not familiar with that name.  When did he start skateboarding?"}, {"role": "assistant", "content": "He was born in 1966 and won his first championship at 14, he then went on to win 35 out of 36 freestyle contests being the most successful in his sport."}, {"role": "user", "content": "That is a long time ago!  I didn't even know skateboarding existed back then!Is he still involved in the sport?"}, {"role": "assistant", "content": "I'm not sure but there was also Lewis Kristian marnell who was Slam Magazine's 2008 \"Skater of the Year\"."}, {"role": "user", "content": "I have never heard of that magazine.  Do pro skateboarders make a lot of money?"}, {"role": "assistant", "content": "I guess it depends on how successful you are. SLAM magazine is actually an American basketball magazine that started in 1994."}]