About: http://webisa.webdatacommons.org/266590382

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
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://www.w3.org/ns/prov#wasQuotedFrom	google.com.au