<http://webisa.webdatacommons.org/233016515>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.co.uk> .
<http://webisa.webdatacommons.org/233016515>	<http://www.w3.org/ns/prov#value>	"The tunneling shaft assembly 46 consists of a tunneling shaft 47 formed of a suitable material such as stainless steel, of a suitable length, as for example 18 inches, and a suitable diameter of approximately ???" .
<http://webisa.webdatacommons.org/prov/311601130>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/233016515> .
<http://webisa.webdatacommons.org/233016515>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .