About: http://webisa.webdatacommons.org/375373992

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 more common types of visual aids are simple tools used to show such things as standards, examples of good and bad, and methods for inspection.
http://www.w3.org/ns/prov#wasQuotedFrom	qualitymag.com