<http://webisa.webdatacommons.org/prov/412653899> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/399188957> . <http://webisa.webdatacommons.org/399188957> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/329943054> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/399188957> . <http://webisa.webdatacommons.org/399188957> <http://www.w3.org/ns/prov#value> "materials such as polyvinyl chloride (PVC), plastisols, polyethylene" . <http://webisa.webdatacommons.org/399188957> <http://www.w3.org/ns/prov#wasQuotedFrom> <patents.com> .