About: http://webisa.webdatacommons.org/391025354

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	Keeping the air free of bacteria and virus is the most important step in keeping the water and air bacteria and virus free.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com