Heathrow Runway 09L/27R
E396898
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Heathrow Runway 09L/27R canonical | 2 |
| Heathrow Airport runway system | 1 |
| Heathrow parallel runway system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3891264 — 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 09L/27R Context triple: [Terminal 5, hasRunwayAccess, Heathrow Runway 09L/27R]
-
A.
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.
-
B.
Heathrow Terminal 2
Heathrow Terminal 2 is a major passenger terminal at London Heathrow Airport, serving as a key hub for many Star Alliance airlines and international flights.
-
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 09L/27R Target entity description: 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.
-
A.
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.
-
B.
Heathrow Terminal 2
Heathrow Terminal 2 is a major passenger terminal at London Heathrow Airport, serving as a key hub for many Star Alliance airlines and international flights.
-
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 (44)
| Predicate | Object |
|---|---|
| instanceOf |
airport runway
ⓘ
transport infrastructure ⓘ |
| hasApproachOver | densely populated areas of West London ⓘ |
| hasDirection09LHeading | approximately 090 degrees ⓘ |
| hasDirection27RHeading | approximately 270 degrees ⓘ |
| hasFunction | handling a large share of Heathrow’s movements ⓘ |
| hasIATAAirportCode |
Heathrow Airport
ⓘ
surface form:
LHR
|
| hasOperationalMode | westerly preference operations at Heathrow ⓘ |
| hasOrientation | east–west ⓘ |
| hasRegulatoryAuthority | UK Civil Aviation Authority ⓘ |
| hasRole | primary arrival and departure runway at Heathrow ⓘ |
| hasRunwayDesignation |
09L
ⓘ
27R ⓘ |
| hasSurface | asphalt ⓘ |
| isAssociatedWith |
Terminal 5
ⓘ
surface form:
Terminal 5 satellite concourses
|
| isConfiguredAs |
left-hand runway for easterly operations
ⓘ
right-hand runway for westerly operations ⓘ |
| isConnectedTo | Heathrow taxiway system ⓘ |
| isEquippedWith |
instrument landing system
ⓘ
precision approach path indicators ⓘ runway lighting ⓘ |
| isIncludedIn | Heathrow Airport master plan ⓘ |
| isLocatedIn |
England
ⓘ
Greater London ⓘ Hillingdon ⓘ
surface form:
London Borough of Hillingdon
United Kingdom ⓘ |
| isOneOf | two main parallel runways at London Heathrow Airport ⓘ |
| isOperatedBy | Heathrow Airport Holdings ⓘ |
| isParallelTo | Heathrow Runway 09R/27L ⓘ |
| isPartOf |
Heathrow Runway 09L/27R
self-linksurface differs
ⓘ
surface form:
Heathrow Airport runway system
|
| isSubjectTo |
night flight restrictions
ⓘ
noise abatement procedures ⓘ |
| isUsedBy |
British Airways
ⓘ
Virgin Atlantic ⓘ international airlines operating at Heathrow ⓘ |
| isUsedFor |
landings
ⓘ
takeoffs ⓘ |
| partOf |
Heathrow Airport
ⓘ
surface form:
London Heathrow Airport
|
| servesTerminal |
Heathrow Terminal 2
ⓘ
surface form:
Terminal 2 at London Heathrow Airport
Heathrow Terminal 3 ⓘ
surface form:
Terminal 3 at London Heathrow Airport
Heathrow Terminal 5 ⓘ
surface form:
Terminal 5 at London Heathrow Airport
|
| supportsTrafficType |
cargo flights
ⓘ
commercial passenger flights ⓘ |
| usesRunwayAlternation | yes ⓘ |
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 09L/27R Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Heathrow parallel runway system
this entity surface form:
Heathrow Airport runway system