Heathrow Runway 09R/27L
E399381
Heathrow Runway 09R/27L is one of the main east–west runways at London Heathrow Airport, handling a significant share of the airport’s takeoffs and landings.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Heathrow Runway 09R/27L canonical | 2 |
| Heathrow runway system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3891265 — 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: Heathrow Runway 09R/27L Context triple: [Terminal 5, hasRunwayAccess, Heathrow Runway 09R/27L]
-
A.
Heathrow Runway 09L/27R
Heathrow Runway 09L/27R is one of London Heathrow Airport’s two main parallel east–west runways, used for a large share of its takeoffs and landings and serving key terminals including Terminal 5.
-
B.
Runway 2 of Manchester Airport
Runway 2 of Manchester Airport is a major secondary runway that supports increased flight capacity and operational flexibility at one of the UK’s busiest airports.
-
C.
Runway 21
Runway 21 is one of the primary landing and takeoff runways serving Charles B. Wheeler Downtown Airport in Kansas City, Missouri.
-
D.
Runway 22
Runway 22 is the runway end aligned approximately with a 220-degree magnetic heading, commonly used for aircraft takeoffs and landings in that direction.
-
E.
Runway 19
Runway 19 is one of the primary landing and takeoff runways serving Charles B. Wheeler Downtown Airport in Kansas City, Missouri.
- 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: Heathrow Runway 09R/27L Target entity description: Heathrow Runway 09R/27L is one of the main east–west runways at London Heathrow Airport, handling a significant share of the airport’s takeoffs and landings.
-
A.
Heathrow Runway 09L/27R
Heathrow Runway 09L/27R is one of London Heathrow Airport’s two main parallel east–west runways, used for a large share of its takeoffs and landings and serving key terminals including Terminal 5.
-
B.
Runway 2 of Manchester Airport
Runway 2 of Manchester Airport is a major secondary runway that supports increased flight capacity and operational flexibility at one of the UK’s busiest airports.
-
C.
Runway 21
Runway 21 is one of the primary landing and takeoff runways serving Charles B. Wheeler Downtown Airport in Kansas City, Missouri.
-
D.
Runway 22
Runway 22 is the runway end aligned approximately with a 220-degree magnetic heading, commonly used for aircraft takeoffs and landings in that direction.
-
E.
Runway 19
Runway 19 is one of the primary landing and takeoff runways serving Charles B. Wheeler Downtown Airport in Kansas City, Missouri.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
airport runway
ⓘ
infrastructure element ⓘ |
| belongsTo | civil aviation infrastructure ⓘ |
| compliesWith | international aviation safety standards ⓘ |
| handles |
landings
ⓘ
takeoffs ⓘ |
| handlesSignificantShareOf | London Heathrow Airport traffic ⓘ |
| hasAccessRestriction | aircraft operations only ⓘ |
| hasDirection |
090 degrees magnetic (approximate)
ⓘ
270 degrees magnetic (approximate) ⓘ |
| hasFunction |
aircraft landing
ⓘ
aircraft takeoff ⓘ |
| hasOrientation | east–west ⓘ |
| hasRole |
primary arrival runway (depending on configuration)
ⓘ
primary departure runway (depending on configuration) ⓘ |
| hasRunwayDesignation |
09R
ⓘ
27L ⓘ |
| hasSurface | asphalt ⓘ |
| isComponentOf |
Heathrow Runway 09R/27L
self-linksurface differs
ⓘ
surface form:
Heathrow runway system
|
| isEquippedWith |
instrument landing system
ⓘ
runway lighting ⓘ runway markings ⓘ |
| isMainRunwayOf |
Heathrow Airport
ⓘ
surface form:
London Heathrow Airport
|
| isManagedBy |
Air Traffic Control Tower
ⓘ
surface form:
air traffic control at London Heathrow Airport
|
| isSubjectTo |
noise abatement procedures
ⓘ
runway inspection procedures ⓘ |
| locatedIn |
England
ⓘ
Greater London ⓘ London, England ⓘ
surface form:
London
United Kingdom ⓘ |
| operatedBy | Heathrow Airport Holdings ⓘ |
| parallelTo | Heathrow Runway 09L/27R ⓘ |
| partOf |
Heathrow Airport
ⓘ
surface form:
London Heathrow Airport
|
| serves |
domestic flights
ⓘ
international flights ⓘ |
| supports |
long-haul operations
ⓘ
short-haul operations ⓘ |
| usedBy |
cargo aircraft
ⓘ
commercial airliners ⓘ |
| usedFor |
charter flights
ⓘ
scheduled airline operations ⓘ |
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: Heathrow Runway 09R/27L Description of subject: Heathrow Runway 09R/27L is one of the main east–west runways at London Heathrow Airport, handling a significant share of the airport’s takeoffs and landings.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Heathrow runway system