About: http://webisa.webdatacommons.org/210219883

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	Also, in the lettercol of issue KBSp#3 is a letter referring to a letter that appeared in KBS#1 but which is not in the MWCSp#1.
http://www.w3.org/ns/prov#wasQuotedFrom	comicbookdb.com