Runway 09L/27R
E286512
Runway 09L/27R is one of London Heathrow Airport’s main east–west runways, used for a large share of its takeoffs and landings.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Runway 09L/27R canonical | 2 |
| Runway 09R/27L | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2059864 — 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: Runway 09L/27R Context triple: [Heathrow Terminal 5, hasRunwayAccessTo, Runway 09L/27R]
-
A.
Runway 09L/27R
Runway 09L/27R is a major east–west runway at Chicago O'Hare International Airport used for handling high volumes of commercial air traffic.
-
B.
Runway 09L/27R
Runway 09L/27R is one of the primary parallel runways used for commercial aircraft operations at Philadelphia International Airport.
-
C.
Runway 09R/27L
Runway 09R/27L is a major east–west runway at Chicago O'Hare International Airport used for handling high volumes of commercial air traffic.
-
D.
Runway 09R/27L
Runway 09R/27L is one of the primary paved runways at Philadelphia International Airport, used for handling commercial air traffic in both eastbound and westbound directions.
-
E.
Runway 01L/19R
Runway 01L/19R is one of the primary parallel runways at San Francisco International Airport, used for both arrivals and departures in varying wind conditions.
- 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: Runway 09L/27R Target entity description: Runway 09L/27R is one of London Heathrow Airport’s main east–west runways, used for a large share of its takeoffs and landings.
-
A.
Runway 09L/27R
Runway 09L/27R is a major east–west runway at Chicago O'Hare International Airport used for handling high volumes of commercial air traffic.
-
B.
Runway 09L/27R
Runway 09L/27R is one of the primary parallel runways used for commercial aircraft operations at Philadelphia International Airport.
-
C.
Runway 09R/27L
Runway 09R/27L is a major east–west runway at Chicago O'Hare International Airport used for handling high volumes of commercial air traffic.
-
D.
Runway 09R/27L
Runway 09R/27L is one of the primary paved runways at Philadelphia International Airport, used for handling commercial air traffic in both eastbound and westbound directions.
-
E.
Runway 01L/19R
Runway 01L/19R is one of the primary parallel runways at San Francisco International Airport, used for both arrivals and departures in varying wind conditions.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
airport runway
ⓘ
paved runway ⓘ |
| formsParallelRunwaySystemWith | Runway 09R/27L ⓘ |
| hasLeftRightDesignator |
L for 09 direction
ⓘ
R for 27 direction ⓘ |
| hasOrientation | east–west ⓘ |
| hasRunwayDesignationConvention | magnetic heading rounded to nearest 10 degrees ⓘ |
| hasRunwayDirection |
09L
ⓘ
27R ⓘ |
| icaoAirportCode |
EGLL
ⓘ
linked to:
Heathrow Airport
|
| isMainRunwayOf |
London Heathrow Airport
ⓘ
linked to:
Heathrow Airport
|
| isMajorRunwayFor |
long‑haul flights at Heathrow
ⓘ
short‑haul flights at Heathrow ⓘ |
| isPartOf |
Heathrow parallel runway system
ⓘ
linked to:
Heathrow Runway 09L/27R
|
| locatedIn |
England
ⓘ
London ⓘ
linked to:
London, England
London Borough of Hillingdon ⓘ
linked to:
Hillingdon
London Heathrow Airport ⓘ
linked to:
Heathrow Airport
United Kingdom ⓘ |
| operatedBy | Heathrow Airport Holdings ⓘ |
| servesAirport |
London Heathrow Airport
ⓘ
linked to:
Heathrow Airport
|
| surfaceType | asphalt ⓘ |
| usedFor |
aircraft landings
ⓘ
aircraft takeoffs ⓘ |
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: Runway 09L/27R Description of subject: Runway 09L/27R is one of London Heathrow Airport’s main east–west runways, used for a large share of its takeoffs and landings.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Runway 09L/27R