About: http://webisa.webdatacommons.org/38150078

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	This entry gives the total number of established helicopter takeoff and landing sites (which may or may not have fuel or other services).
http://www.w3.org/ns/prov#wasQuotedFrom	theworldfactbook.info