Airport Express Line (Delhi Metro)
E712017
The Airport Express Line of the Delhi Metro is a high-speed rail corridor connecting central Delhi with Indira Gandhi International Airport, designed to provide fast and convenient airport access.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Airport Express Line (Delhi Metro) canonical | 2 |
| Delhi Airport Express Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7842531 — 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: Airport Express Line (Delhi Metro) Context triple: [Yellow Line (Delhi Metro), interchangeWith, Airport Express Line (Delhi Metro)]
-
A.
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi and its surrounding metropolitan region, known for its extensive network, modern infrastructure, and role in easing urban congestion.
-
B.
Blue Line (Delhi Metro)
Blue Line (Delhi Metro) is one of the major rapid transit corridors in Delhi, India, running predominantly east–west and serving as a key backbone of the city's metro network.
-
C.
Red Line (Delhi Metro)
Red Line (Delhi Metro) is one of the major lines of the Delhi Metro network, serving the northern and eastern parts of Delhi and extending into neighboring regions.
-
D.
Green Line (Delhi Metro)
The Green Line of the Delhi Metro is a rapid transit corridor in Delhi that primarily serves the city's western and northwestern areas, connecting key residential and industrial zones.
-
E.
Yellow Line (Delhi Metro)
The Yellow Line of the Delhi Metro is one of the system’s major north–south corridors, connecting key areas such as Samaypur Badli, Kashmere Gate, New Delhi, Rajiv Chowk, and Gurgaon, and serving as a crucial backbone of rapid transit in the Delhi NCR region.
- 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: Airport Express Line (Delhi Metro) Target entity description: The Airport Express Line of the Delhi Metro is a high-speed rail corridor connecting central Delhi with Indira Gandhi International Airport, designed to provide fast and convenient airport access.
-
A.
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi and its surrounding metropolitan region, known for its extensive network, modern infrastructure, and role in easing urban congestion.
-
B.
Blue Line (Delhi Metro)
Blue Line (Delhi Metro) is one of the major rapid transit corridors in Delhi, India, running predominantly east–west and serving as a key backbone of the city's metro network.
-
C.
Red Line (Delhi Metro)
Red Line (Delhi Metro) is one of the major lines of the Delhi Metro network, serving the northern and eastern parts of Delhi and extending into neighboring regions.
-
D.
Green Line (Delhi Metro)
The Green Line of the Delhi Metro is a rapid transit corridor in Delhi that primarily serves the city's western and northwestern areas, connecting key residential and industrial zones.
-
E.
Yellow Line (Delhi Metro)
The Yellow Line of the Delhi Metro is one of the system’s major north–south corridors, connecting key areas such as Samaypur Badli, Kashmere Gate, New Delhi, Rajiv Chowk, and Gurgaon, and serving as a crucial backbone of rapid transit in the Delhi NCR region.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
airport rail link
ⓘ
metro line ⓘ |
| alsoKnownAs | Orange Line NERFINISHED ⓘ |
| character |
elevated
ⓘ
underground ⓘ |
| cityServed |
Delhi
NERFINISHED
ⓘ
New Delhi NERFINISHED ⓘ |
| connectsDistrict | Central Delhi NERFINISHED ⓘ |
| connectsFacility | Indira Gandhi International Airport Terminal 3 NERFINISHED ⓘ |
| connectsTo |
Indira Gandhi International Airport
NERFINISHED
ⓘ
New Delhi Railway Station NERFINISHED ⓘ |
| connectsWith |
Blue Line (Delhi Metro)
NERFINISHED
ⓘ
Yellow Line (Delhi Metro) NERFINISHED ⓘ |
| country | India ⓘ |
| designedFor |
fast airport connectivity
ⓘ
luggage-carrying passengers ⓘ |
| electrification | 25 kV AC overhead catenary ⓘ |
| fareSystem | separate fare structure from regular Delhi Metro lines ⓘ |
| hasAirConditioning | yes ⓘ |
| hasInterchange |
Dwarka Sector 21 metro station
NERFINISHED
ⓘ
New Delhi metro station NERFINISHED ⓘ |
| hasLuggageFacilities | yes ⓘ |
| hasStation |
Delhi Aerocity metro station
NERFINISHED
ⓘ
Dhaula Kuan metro station NERFINISHED ⓘ Dwarka Sector 21 metro station NERFINISHED ⓘ IGI Airport metro station NERFINISHED ⓘ New Delhi metro station NERFINISHED ⓘ Shivaji Stadium metro station NERFINISHED ⓘ |
| infrastructureType | urban rail corridor ⓘ |
| lineColor | orange ⓘ |
| locatedIn |
Delhi
NERFINISHED
ⓘ
National Capital Region NERFINISHED ⓘ |
| networkRole | airport express corridor ⓘ |
| operator | Delhi Metro Rail Corporation NERFINISHED ⓘ |
| owner | Delhi Metro Rail Corporation NERFINISHED ⓘ |
| partOf | Delhi Metro NERFINISHED ⓘ |
| primaryFunction | link central Delhi to airport ⓘ |
| purpose |
airport access
ⓘ
high-speed urban transit ⓘ |
| region |
northern India
ⓘ
surface form:
North India
|
| servedAirport | Indira Gandhi International Airport NERFINISHED ⓘ |
| serviceType | premium metro service ⓘ |
| system | Delhi Metro Rail Network NERFINISHED ⓘ |
| terminusStation |
Dwarka Sector 21 metro station
NERFINISHED
ⓘ
New Delhi metro station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| transportMode | rail ⓘ |
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: Airport Express Line (Delhi Metro) Description of subject: The Airport Express Line of the Delhi Metro is a high-speed rail corridor connecting central Delhi with Indira Gandhi International Airport, designed to provide fast and convenient airport access.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Yellow Line (Delhi Metro)
subject surface form:
Orange Line (Delhi Metro)
this entity surface form:
Delhi Airport Express Line
subject surface form:
Blue Line (Delhi Metro)