About: http://webisa.webdatacommons.org/142830042

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	FAA Plain Language Writing Order 1000.36, (page 4) (PDF) says avoid the word "shall and use must to impose requirements, including contracts.
http://www.w3.org/ns/prov#wasQuotedFrom	faa.gov