About: http://webisa.webdatacommons.org/372792377

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	one metal ion selected from the group consisting of Tl, Tb, Na, Ce, Pr, Eu, and combinations thereof; and n is an integer between 1 and 4, inclusive.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca