About: http://webisa.webdatacommons.org/289115272

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	Apart from the thermal stress and other problems of dealing with cryogens, it is difficult to keep oxygen from reacting with the walls of the plumbing it is flowing through.
http://www.w3.org/ns/prov#wasQuotedFrom	earthlink.net