About: http://webisa.webdatacommons.org/117631358

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	When any active depressurization system is installed, it is recommended to make sure that its operation does not cause backdrafting of combustion appliances such as a furnace, water heater, fireplace, or wood stove in the home.
http://www.w3.org/ns/prov#wasQuotedFrom	hc-sc.gc.ca