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Street art
Street artists do not aspire to change the definition of an artwork, but rather to question the existing environment with its own language.
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Skateboarder
Skateboarder in Grants Pass, OregonnThe first skateboards started with wooden boxes, or boards, with roller skate wheels attached to the bottom
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Graffiti
Graffiti are writing or drawings that have been scribbled, scratched, or painted illicitly on a wall or other surface, often within public view.