About: http://webisa.webdatacommons.org/355977434

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	As for the promoter component, it can include, for example, rare earth metals, magnesium, rhenium, and alkali metals, such as lithium, sodium, potassium, rubidium and cesium.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com