About: http://webisa.webdatacommons.org/199789133

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	Moreover, in the flame treatment, a flame source such as natural gases and liquefied propane gas can be used and it is important to properly control the mixing ratio of these gases to air.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com