Assertion: car | /r/HasAspect | flat arrays
Facets:
value: by 1997
type: TEMPORAL
Source sentences:
text: For example, the 1990 and 1993 Sunrayce USA events were won by vehicles with significantly convex arrays, corresponding to the south-north race alignments; by 1997, however, most cars in that event had flat arrays to match the change to an east-west route.