About: http://webisa.webdatacommons.org/414358386

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	It is, however, very difficult to meet these requirements, particularly in cases where a sprocket is arranged to engage the perforations of the film.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com