About: http://webisa.webdatacommons.org/382995863

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 Formulae 1 and 1A above, M1 is a metallic element capable of forming tetravalent cations.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com