Assertion: ufo | /r/CapableOf | come by default
Facets:
value: culturally
type: MANNER
value: to mean "alien spacecraft"
type: TRANSITIVE-OBJECT
Source sentences:
text: Culturally, "Unidentified Flying Object" has come to mean "alien spacecraft" by default though sometimes the term ETV (ExtraTerrestrial Vehicle) is used to separate an alien vehicle from an unknown earth vehicle.