About: http://webisa.webdatacommons.org/73754651

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	Just the concept of the evolution of a 'club' of presidents due to increases in longevity (!), the impact the club can have, the rules that the members (tacitly) abide by (well, except for Carter and Nixon-!).
http://www.w3.org/ns/prov#wasQuotedFrom	audible.com