About: http://webisa.webdatacommons.org/141726253

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	Accordingly, most modern traffic channelizers are of a two-piece construction consisting of a base and a hollow drum and are made of a lightweight, plastic material, such as polyethylene.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com