About: http://webisa.webdatacommons.org/187997879

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, if the displacement is larger than 50 ??m, for example more than 75 ??m (???), diagonals can cause problems and it can be difficult to determine to which nominal position a mark belongs.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca