About: http://webisa.webdatacommons.org/424236097

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	Because, the working head 16 is made of a transparent material, such as plastic, the direct visualization allows for confirmation of the course of the vein 7 as well as identification of side branches 9.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk