About: http://webisa.webdatacommons.org/410256329

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	In April 1963, Martin Luther King wrote from a Birmingham jail that Injustice anywhere is a threat to justice everywhere.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com