@base <http://semantics.aero/airways-prefix>.

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix dc: <http://purl.org/dc/elements/1.1/>.
@prefix skos: <http://www.w3.org/2004/02/skos/core#>.
@prefix aw: <http://semantics.aero/airways-prefix#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.

<http://semantics.aero/airways-prefix> rdf:type owl:Ontology;
	dc:title "US Airways";
	dc:version "1.0.0";
	dc:description "A classification of US Airways based on airway identification prefixes.";
	skos:editorialNote "The source of this taxonomy is OGC Testbed 13 <a href=\"http://semantics.aero#ref-2\">Geospatial Taxonomies Engineering Report</a>. It has been modified to support a uniform approach adopted for semantics.aero";
	dc:creator "Charles Chen";
	dc:publisher "OGC Testbed 13";
	dc:source "http://docs.opengeospatial.org/per/17-036.html";	
	dc:issued "2017-09-21";
	dc:format "RDF".

aw:airways-prefix a skos:Concept;
	skos:prefLabel "US Airways Prefix";
	skos:altLabel "US Airway";
	skos:definition "An airway identification prefix whose format is determined based on High/Low Altitude VOR stations and High/Low Altitude RNAV Routes.";
	skos:narrower aw:V;
	skos:narrower aw:J;
	skos:narrower aw:T;
	skos:narrower aw:Q.

aw:V a skos:Concept;
	skos:prefLabel "V";
	skos:definition "Low altitude airways below 18,000 feet (5,500 m) MSL based on VOR stations. Also known as VICTOR airways. Indexed with the letter V".

aw:J a skos:Concept;
	skos:prefLabel "J";
	skos:definition "High altitude airways from 18,000 feet (5,500 m) MSL to FL450 based on VOR stations. Also called JET routes. Indexed with the letter J".

aw:T a skos:Concept;
	skos:prefLabel "T";
	skos:definition "Low Altitude RNAV Routes, indexed with the letter T".

aw:Q a skos:Concept;
	skos:prefLabel "Q";
	skos:definition "High altitude RNAV route, indexed with the letter Q".