About: http://webisa.webdatacommons.org/69023991

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	Constam, Emil Joseph, 1858-1917 2 letters, 1904 Correns, Carl Franz Joseph Erich, 1864-1933 13 letters, 1914-1919, mainly while director,
http://www.w3.org/ns/prov#wasQuotedFrom	cdlib.org