Assertion: elevator | /r/HasProperty | available
Facets:
value: for occupant evacuation
type: PURPOSE
value: by the mid-19th century
type: TEMPORAL
value: for sale
type: PURPOSE
Source sentences:
text: By the mid-19th century, elevators powered by steam or water were available for sale, but the ropes they relied upon could be worn out or destroyed and were not, therefore, generally trusted for passenger travel.
text: Lobbies serving occupant evacuation elevators must provide a status indicator that shows by green illumination that elevators are available for occupant evacuation when elevators are in normal service and the fire alarm system has indicated an alarm.