About: http://webisa.webdatacommons.org/126989196

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	Blueprint specifications for spikes, rails, tracks and other equipment used by the railroad.
http://www.w3.org/ns/prov#wasQuotedFrom	cdlib.org