About: http://webisa.webdatacommons.org/202582798

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	Primary sources are original texts, letters, objects, photographs, ephemera, realia and other materials on which historical research is based.
http://www.w3.org/ns/prov#wasQuotedFrom	brynmawr.edu