About: http://webisa.webdatacommons.org/172576975

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	At that time there were a number of maps, charts, and books that had already been printed, some of which were copyrighted under state laws and some of which were arguably entitled to perpetual protection under the common law.
http://www.w3.org/ns/prov#wasQuotedFrom	cornell.edu