About: http://webisa.webdatacommons.org/172342702

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 book is a collection of letters mailed to Mrs. Kennedy after John F. Kennedy was killed.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com