National Airport
E540618
National Airport is the former name of the airport now known as Ronald Reagan Washington National Airport, a major commercial airport serving the Washington, D.C. metropolitan area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| National Airport canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5617206 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Airport Context triple: [National Airport station, formerName, National Airport]
-
A.
Washington Dulles International Airport
Washington Dulles International Airport is a major international airport serving the Washington, D.C. metropolitan area, known for its extensive global flight network and iconic Eero Saarinen–designed terminal.
-
B.
Clinton National Airport
Clinton National Airport is the primary commercial airport serving the Little Rock metropolitan area and central Arkansas.
-
C.
Las Américas International Airport
Las Américas International Airport is a major international gateway serving the Dominican Republic’s capital region and one of the country’s busiest hubs for passenger and cargo traffic.
-
D.
Bill and Hillary Clinton National Airport
Bill and Hillary Clinton National Airport is the primary commercial airport serving Little Rock, Arkansas, named in honor of former President Bill Clinton and former Secretary of State Hillary Clinton.
-
E.
Abraham Lincoln Capital Airport
Abraham Lincoln Capital Airport is a public airport serving the Springfield, Illinois area, offering commercial, general aviation, and military aviation services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: National Airport Target entity description: National Airport is the former name of the airport now known as Ronald Reagan Washington National Airport, a major commercial airport serving the Washington, D.C. metropolitan area.
-
A.
Washington Dulles International Airport
Washington Dulles International Airport is a major international airport serving the Washington, D.C. metropolitan area, known for its extensive global flight network and iconic Eero Saarinen–designed terminal.
-
B.
Clinton National Airport
Clinton National Airport is the primary commercial airport serving the Little Rock metropolitan area and central Arkansas.
-
C.
Las Américas International Airport
Las Américas International Airport is a major international gateway serving the Dominican Republic’s capital region and one of the country’s busiest hubs for passenger and cargo traffic.
-
D.
Bill and Hillary Clinton National Airport
Bill and Hillary Clinton National Airport is the primary commercial airport serving Little Rock, Arkansas, named in honor of former President Bill Clinton and former Secretary of State Hillary Clinton.
-
E.
Abraham Lincoln Capital Airport
Abraham Lincoln Capital Airport is a public airport serving the Springfield, Illinois area, offering commercial, general aviation, and military aviation services.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | airport ⓘ |
| alsoKnownAs |
Washington National
NERFINISHED
ⓘ
Washington National Airport NERFINISHED ⓘ |
| connectedTo | Ronald Reagan Washington National Airport station (Washington Metro) NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| distanceFromDowntownWashingtonDC | approximately 3 miles ⓘ |
| elevation | 15 feet ⓘ |
| FAAcode | DCA NERFINISHED ⓘ |
| formerNameOf | Ronald Reagan Washington National Airport NERFINISHED ⓘ |
| hasApproach | River Visual approach to Runway 19 NERFINISHED ⓘ |
| hasNoiseRestrictions | yes ⓘ |
| hasRunway |
Runway 1/19
ⓘ
Runway 15/33 ⓘ Runway 4/22 ⓘ |
| hasStrictSecurityRestrictions | yes ⓘ |
| hasTerminal |
Terminal 1
ⓘ
Terminal 2 ⓘ |
| IATAcode | DCA NERFINISHED ⓘ |
| ICAOcode | KDCA NERFINISHED ⓘ |
| isCloseTo |
National Mall
NERFINISHED
ⓘ
Pentagon NERFINISHED ⓘ |
| isPartOf | National Capital Region airports system NERFINISHED ⓘ |
| isPrimaryAirportFor |
U.S. Congress travel to Washington, D.C.
ⓘ
White House-related travel to Washington, D.C. ⓘ |
| locatedIn | Arlington County, Virginia NERFINISHED ⓘ |
| metroLine |
Blue Line
NERFINISHED
ⓘ
Yellow Line NERFINISHED ⓘ |
| near | Washington, D.C. NERFINISHED ⓘ |
| opened | 1941 ⓘ |
| operator | Metropolitan Washington Airports Authority NERFINISHED ⓘ |
| otherMajorAirportInRegion |
Baltimore/Washington International Thurgood Marshall Airport
NERFINISHED
ⓘ
Washington Dulles International Airport NERFINISHED ⓘ |
| owner |
United States government
ⓘ
surface form:
United States federal government
|
| perimeterRuleTypicalLimit | 1250 miles ⓘ |
| primaryUse | domestic flights ⓘ |
| runwaySurface | asphalt ⓘ |
| serves | Washington, D.C. metropolitan area NERFINISHED ⓘ |
| servesAsFocusCityFor | Southwest Airlines NERFINISHED ⓘ |
| servesAsHubFor | American Airlines NERFINISHED ⓘ |
| servesCity | Washington, D.C. NERFINISHED ⓘ |
| servesStateOrDistrict |
District of Columbia
NERFINISHED
ⓘ
Virginia NERFINISHED ⓘ |
| situatedOn | Potomac River NERFINISHED ⓘ |
| timezone | Eastern Time Zone ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: National Airport Description of subject: National Airport is the former name of the airport now known as Ronald Reagan Washington National Airport, a major commercial airport serving the Washington, D.C. metropolitan area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.