<http://webisa.webdatacommons.org/437772850>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/294561178>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/437772850> .
<http://webisa.webdatacommons.org/437772850>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/50103645>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/437772850> .
<http://webisa.webdatacommons.org/437772850>	<http://www.w3.org/ns/prov#value>	"It is understood that the slats 18 may be formed from other suitable materials such as plastic or steel." .