About: http://webisa.webdatacommons.org/194265092

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	Made of rigid material, such as polystyrene or high density polyethylene or polypropylene, the blood-tunnels are straight as to appear geometrical cords in cross-section, and buttress the wall of the barrel-catheter, making it stiffer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com