<http://webisa.webdatacommons.org/prov/233839131>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/259583233> .
<http://webisa.webdatacommons.org/259583233>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/259583233>	<http://www.w3.org/ns/prov#value>	"FIG. 6 is a schematic drawing of a conventional foldable walker;" .
<http://webisa.webdatacommons.org/259583233>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .