About: http://webisa.webdatacommons.org/224800134

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	When it is desired to suck blood or other body fluids into hollow metal tube 30, the surgeon's finger slid forward over vent 22 provides the desired degree of suction.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es