Assertion: aircraft | /r/PartOf | king george vi
Facets:
value: technically
type: MANNER
Source sentences:
text: The etymology of the nickname is unclear: some claim it is a reference to inventor George De Beeson, who patented an autopilot in the 1930s, while others claim that Royal Air Force pilots coined the term during World War II to symbolize that their aircraft technically belonged to King George VI.