About: http://webisa.webdatacommons.org/21396333

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	This situation is especially common if the facts" contained in the letter seem to agree with the researcher's own perception of the facts, i.e. the date in the letter agrees with the researcher's belief as to when the birth occurred.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com