About: http://webisa.webdatacommons.org/284017386

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	When the choice of pivot point results in too little support at the back edge of lid 20, then a support such as a rail or protruding nubs may be added along the back edge of the lid opening.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com