About: http://webisa.webdatacommons.org/366670181

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	And David Gergen has been an adviser to four presidents, including Richard Nixon, now professor at Harvard's John F. Kennedy School of Government and director of the Center of Public Leadership.
http://www.w3.org/ns/prov#wasQuotedFrom	cnn.com