<http://webisa.webdatacommons.org/266590383> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com.au> . <http://webisa.webdatacommons.org/266590383> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/266590383> <http://www.w3.org/ns/prov#value> "In some of the embodiments comprising at least one rigid or semi-rigid portion, such portion may be constructed of metals, wood, ceramics, plastics and other polymers, such as polyvinyl chloride, or combinations of all such materials." . <http://webisa.webdatacommons.org/prov/430959940> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/266590383> . <http://webisa.webdatacommons.org/prov/433983844> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/266590383> . <http://webisa.webdatacommons.org/prov/229954797> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/266590383> .