About: http://webisa.webdatacommons.org/28777430

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	Returns the anchor position; this is the same as position() unless there is a selection in which case position() marks one end of the selection and anchor() marks the other end.
http://www.w3.org/ns/prov#wasQuotedFrom	qt.io