About: http://webisa.webdatacommons.org/237257082

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	Laboratories that can safely handle deadly pathogens such as the smallpox and Ebola viruses are usually designated as BSL-4,'' an abbreviation for biosafety level 4,'' that refers to a maximum containment facility.
http://www.w3.org/ns/prov#wasQuotedFrom	engineering.com