Assertion: school bus | /r/HasProperty | manufactured by three chassis manufacturers
Facets:
value: in 1980
type: TEMPORAL
Source sentences:
text: In 1980, school buses were manufactured by six body manufacturers (Blue Bird, Carpenter, Superior, Thomas, Ward, Wayne) and three chassis manufacturers (Ford, General Motors, and International Harvester); in California, two manufacturers (Crown and Gillig) manufactured transit-style school buses using proprietary chassis (sold primarily across the West Coast).