About: http://webisa.webdatacommons.org/434577097

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	Some respiratory diseases are caused by bacteria or viruses, while others are caused by environmental pollutants such as tobacco smoke.
http://www.w3.org/ns/prov#wasQuotedFrom	ck12.org