Assertion: dirt racecourse | /r/CapableOf | nickname big sandy
Facets:
value: by racing followers
type: OTHER
Source sentences:
text: The dirt racecourse, known officially as the Main Track and nicknamed "Big Sandy" by racing followers, has a circumference of 1 1⁄ 2 miles (2.4 km), the longest dirt thoroughbred racetrack in North America.