Assertion: mastiff's dog | /r/HasProperty | created in ussr
Facets:
value: during the early 1950s
type: TEMPORAL
value: during the late 1940s
type: TEMPORAL
Source sentences:
text: The Black Russian Terrier, abbreviated as BRT, also known as the Tchiorny Terrier is a breed of dog created in USSR in Red Star Kennel during the late 1940s and the early 1950s for use as military/working dogs.