About: http://webisa.webdatacommons.org/50167754

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	some of the marks are symmetrical so maybe they are some sort of feature.
http://www.w3.org/ns/prov#wasQuotedFrom	saxontheweb.net