<http://webisa.webdatacommons.org/prov/459431003>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/172561425> .
<http://webisa.webdatacommons.org/172561425>	<http://www.w3.org/ns/prov#value>	"A tube 16, made of an insulating material such as PTFE, is a friction fit around the proximal end of the cylindrical portion 15a of the insulator/spacer 15, and extends substantially along the entire length of the instrument." .
<http://webisa.webdatacommons.org/172561425>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/172561425>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .