About: http://webisa.webdatacommons.org/15394181

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 retraction mechanism can comprise, for example, an electroactive polymer actuator, a mechanical pull wire, or other system for axially displacing the delivery sheath.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com