About: http://webisa.webdatacommons.org/200046276

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	Formaldehyde is also produced by cigarettes and other tobacco products, gas cookers, and open fireplaces.
http://www.w3.org/ns/prov#wasQuotedFrom	cdc.gov