About: http://webisa.webdatacommons.org/174076978

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	They are used to check that objects such as text or image frames are properly aligned.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com