About: http://webisa.webdatacommons.org/41669299

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	On board, invited speakers including writers and prominent space buffs participated in a symposium chaired by television personality Hugh Downs, who later became Chairman of the National Space Institute.
http://www.w3.org/ns/prov#wasQuotedFrom	nss.org