<http://webisa.webdatacommons.org/prov/61168506>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/155231810> .
<http://webisa.webdatacommons.org/155231810>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/155231810>	<http://www.w3.org/ns/prov#value>	"The lead can be made of any suitable material, for example a polymeric material." .
<http://webisa.webdatacommons.org/155231810>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .