About: http://webisa.webdatacommons.org/91174541

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	An improved action is achieved when the pulleys have at least one, particularly two, entraining elements or pressing elements movingalong the circumference of the pulleys, for example,
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com