About: http://webisa.webdatacommons.org/224378835

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	Phosphorous, arsenic, silicon, titanium, iron, boron, nickel, uranium, and the like are examples of heteroatoms which may be used in the formation of heteropoly acids.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com