<http://webisa.webdatacommons.org/142319738>	<http://www.w3.org/ns/prov#value>	"Even when constructed of a flexible material such as polyethylene or an elastomer, the retaining strips in the combinations of the present invention have mechanical strength sufficient to resist deformation by downward or lateral forces." .
<http://webisa.webdatacommons.org/142319738>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/142319738>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/426357823>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142319738> .
<http://webisa.webdatacommons.org/prov/409911369>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142319738> .