About: http://webisa.webdatacommons.org/378367171

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 4 occasions during the first 20 years, a sudden illness or other emergency has prevented a speaker from attending.
http://www.w3.org/ns/prov#wasQuotedFrom	rcjournal.com