About: http://webisa.webdatacommons.org/2017819

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	How did you make sure that this, indeed, was a letter that he wrote and was the letter that was making so much news?
http://www.w3.org/ns/prov#wasQuotedFrom	cnn.com