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AMA
Wikipedia definition
1. AMA Supercross ChampionshipSupercross is a motorcycle racing sport involving off-road motorcycles on an artificially-made dirt tracks consisting of steep jumps and obstacles. Professional supercross contest races are held almost exclusively within professional baseball and football stadiums.
Read “AMA Supercross Championship” on English Wikipedia
Read “AMAスーパークロス” on Japanese Wikipedia
Read “AMA Supercross Championship” on DBpedia

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