About: http://webisa.webdatacommons.org/391009252

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	ero atoms selected from the group consisting of O, N and S as ring members, An.sup.??? is an anion and M is a cation, and x is greater than y and y is greater than 0, and the sum of x+y is 4 or less than 4.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com