About: http://webisa.webdatacommons.org/281191825

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 fulcrum comprises a hardening material, preferably a polymeric material which hardens with time, such as a thermosetting polymer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com