About: http://webisa.webdatacommons.org/21482754

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	That is, the problems associated with the use of crown ethers have been solved by using acyclic polyethers, e.g., polyethylene glycol(PEG) which has the general formula HO(CH2 CH2 O)n H, wherein n is an integer equal to 2 or greater.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca