About: http://webisa.webdatacommons.org/57410984

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	Before machines were designed to extract the marble, workers, mainly Irish immigrants, did it by hand using ordinary tools such as hand drills, hammers and chisels.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com