Assertion: ufo | /r/HasProperty | preferred term
Facets:
value: for most unidentified aerial sightings
type: TRANSITIVE-OBJECT
value: for those
type: OTHER
value: from the late 1940s
type: TEMPORAL
value: to the 1960s
type: TEMPORAL
Source sentences:
text: "Flying Saucer" was the preferred term for most unidentified aerial sightings from the late 1940s to the 1960s, even for those that were not actually saucer-shaped.