About: http://webisa.webdatacommons.org/131533137

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	The cable and all its components, including the splice cases and the systems, are maintained at a pressure of about 6 pounds per square inch, provided, however, that the complete system is sealed for this particular pressure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com