About: http://webisa.webdatacommons.org/292236076

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	In addition, it may be necessary to fly above a minimum height to avoid collision with mountains, buildings and structures such as radio towers etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com