About: http://webisa.webdatacommons.org/43233018

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	Its products were standard steel frogs and switches, track supplies and other railroad specialties. (In railroading, a frog is a device placed at the intersection of two tracks.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com