About: http://webisa.webdatacommons.org/368278103

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The building's four stairwells are protected by 2 feet of concrete and can be pressurized to repel smoke and other contaminants, reducing chances of both panic and impaired visibility.
http://www.w3.org/ns/prov#wasQuotedFrom	buildings.com