Assertion: california condor | /r/CapableOf | have been in the 20 years
Facets:
value: between 1946
type: TEMPORAL
value: to have been in captivity
type: TEMPORAL
Source sentences:
text: In the 20 years between 1946, when the last National Zoo condor died and "Topatopa's" capture, only two California condors are known to have been in captivity.