Assertion: rifle | /r/HasProperty | developed by gunmaker armalite
Facets:
value: in the 1950s
type: TEMPORAL
Source sentences:
text: The original AR-15 was a derivative of a rifle first developed by gunmaker ArmaLite in the 1950s.
text: The original AR-15 was a derivative of a rifle first developed by gunmaker ArmaLite in the 1950s.