New Hampshire Motor Speedway is a 1.058 mi oval speedway located in Loudon, New Hampshire, which has hosted NASCAR racing annually since the early 1990s, as well as the longest-running motorcycle race in North America, the Loudon Classic. Nicknamed "The Magic Mile", the speedway is often converted into a 1.6 mi road course, which includes much of the oval.
The oval part of the track is in the Loudon location, having motorcycle Nascar races.
Nascar does host motorcycle races, but I believe it made the agent feel that it was saying Nascar is about motorcycles.
( z1 track :mod ( z2 oval ) :location ( z3 location :name ( z4 name :op "Loudon" ) ) :ARG0-of ( z5 have :ARG1 ( z6 race :ARG3 ( z7 event :name ( z8 name :op "Nascar" ) :mod ( z9 motorcycle ) ) ) ) )