About: http://webisa.webdatacommons.org/201642531

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	register/comparators 18 and 19 can store designation of only those barriers actually in use, i.e. previously actuated by a command and not yet de-activated.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com