About: http://webisa.webdatacommons.org/10110347

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	However the use of a screen having holes therein gives rise to a number of problems including the difficulty of producing and handling thin screens, and of making the desired patterns of holes therein.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es