claim: One form of ground fighting is Brazilian jiu-jitsu.
evidence: Fay Taylour -LRB- 5 April 1904 -- 2 August 1983 -RRB- , known as Flying Fay , was an Irish motorcyclist in the late 1920s and a champion speedway rider .. Irish. Irish people. motorcyclist. motorcycle. speedway. Motorcycle speedway. She switched to racing cars in 1931 .. racing cars. auto racing. She was interned as a fascist during the Second World War but after the war continued racing in the UK and America until she retired in the late 1950s .. fascist. fascist. Second World War. Second World War. America. United States