Assertion: zeppelin's airship | /r/HasProperty | reinflated with fresh hydrogen
Facets:
value: to ensure maximum lift
type: PURPOSE
value: on 13 july
type: TEMPORAL
Source sentences:
text: On 13 July 1908, the airship was reinflated with fresh hydrogen to ensure maximum lift for the planned 24-hour endurance trial, which was to be a return flight to Mainz.