About: http://webisa.webdatacommons.org/14790771

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	In contrast, when the O:Si ratio is low (e.g., 3/2 or lower), it is necessary to supply oxygen for forming a film by adding an oxidizing agent such as N2O and O2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au