About: http://webisa.webdatacommons.org/236897871

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	Caption Speakers at the 50th anniversary commemoration of the March on Washington included Presidents Obama and Clinton, Oprah and other public figures and members of the King family.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonpost.com