About: http://webisa.webdatacommons.org/258406515

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 which M is an alkali metal or a quaternary ammonium group; x is a number ranging from 0 to 0.2; z is a number ranging from 0 to 0.7; y is such that y=4-z+x; and n is a number ranging from 0 to approximately 20.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com