About: http://webisa.webdatacommons.org/423043401

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 need for apparatus to allow a worker to securely hold tools and other necessary material when working at the top of an elevated platform such as a ladder is well established.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com