About: http://webisa.webdatacommons.org/312503179

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	The rigid portion 14 including the post 20 may be formed of materials, such as high density polyethylene (HDPE), ultrahigh molecular weight (UHMW) polyethylene, or like materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr