About: http://webisa.webdatacommons.org/99502271

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	He backed up many of the Classic Blues singers of the 1920s, such as Ida Cox, Ethel Waters and Bessie Smith.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com