About: http://webisa.webdatacommons.org/288913752

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	Group I elements include such elements as Cu, Ag and Au, group III elements include Al, In, Ga and Tl, whereas group VI elements include S, Se and Te.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es