About: http://webisa.webdatacommons.org/69973294

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	Finding serial centenarians ??? a pair of relatives who knew each other and lived in the 18th, 19th, 20th, and 21st centuries between the two of them (he is all the U.S. presidents except Washington and Obama!)
http://www.w3.org/ns/prov#wasQuotedFrom	honoringourancestors.com