Assertion: regulation puck | /r/HasProperty | standardized for ease of manufacture
Facets:
value: a century earlier
type: TEMPORAL
value: by art ross
type: OTHER
value: in 1940
type: TEMPORAL
Source sentences:
text: NHL regulation pucks were not required for professional play until the 1990–91 season, but were standardized for consistent play and ease of manufacture half a century earlier, by Art Ross, in 1940.