Assertion: mastiff's dog | /r/CapableOf | become popular
Facets:
value: in iberian peninsula
type: LOCATION
value: in europe
type: LOCATION
value: by the early 1970s
type: TEMPORAL
Source sentences:
text: They got the name Mastino Napoletano and by the early 1970s these dogs became popular in Europe.
text: The dog became popular in Iberian Peninsula after it was introduced by Phoenician tradesmen.