Assertion: zeppelin's airship | /r/CapableOf | maintain absolute secrecy
Facets:
value: without returning to base
type: MANNER
Source sentences:
text: As soon as it is declared airworthy, to maintain absolute secrecy without first returning to base, the airship is to take part in a military operation to steal or destroy British historical documents, including the copy of Magna Carta, from Balcoven Castle in Scotland.