About: http://webisa.webdatacommons.org/261898124

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	The four Sikorsky H-19 helicopters of the new air force were insufficient for such duties as medevacing the ill and wounded, so two additional H-19s were acquired from the Royal Thai Air Force in October 1955.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org