Assertion: blackbird | /r/HasProperty | flown at usaf plant
Facets:
value: in palmdale
type: LOCATION
value: from its birthplace
type: LOCATION
Source sentences:
text: When the SR-71 was retired in 1990, one Blackbird was flown from its birthplace at USAF Plant 42 in Palmdale, California, to go on exhibit at what is now the Smithsonian Institution's Steven F. Udvar-Hazy Center in Chantilly, Virginia.