About: http://webisa.webdatacommons.org/181559006

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	It???s a reminder that even general aviation pilots flying at piston altitudes should take care, and the effects of hypoxia, particularly on vision, can begin at 5,000 feet.
http://www.w3.org/ns/prov#wasQuotedFrom	aopa.org