Blue Line (Delhi Metro)
E698291
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.
All labels observed (10)
How this entity was disambiguated
This entity first appeared as the object of triple T7784169 — 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: Blue Line (Delhi Metro) Context triple: [Pink Line (Delhi Metro), interchangeWith, Blue Line (Delhi Metro)]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Noida Metro
Noida Metro is a rapid transit system serving the city of Noida and its surrounding areas in India’s National Capital Region.
-
E.
Rapid Metro Gurgaon
Rapid Metro Gurgaon is a privately built and operated light rapid transit system serving key commercial and residential areas of Gurugram in the National Capital Region of India.
- 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: Blue Line (Delhi Metro) Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Noida Metro
Noida Metro is a rapid transit system serving the city of Noida and its surrounding areas in India’s National Capital Region.
-
E.
Rapid Metro Gurgaon
Rapid Metro Gurgaon is a privately built and operated light rapid transit system serving key commercial and residential areas of Gurugram in the National Capital Region of India.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | metro line ⓘ |
| accessibility |
elevators
ⓘ
escalators ⓘ tactile paths for visually impaired ⓘ |
| character |
at-grade
ⓘ
elevated ⓘ underground ⓘ |
| connects |
Ghaziabad
ⓘ
Noida ⓘ central Delhi ⓘ eastern Delhi ⓘ
linked to:
East Delhi
western Delhi ⓘ |
| country | India ⓘ |
| direction | east–west ⓘ |
| electrification | overhead catenary ⓘ |
| fareMedium | Delhi Metro Smart Card ⓘ |
| fareSystem | Delhi Metro zonal fare system ⓘ |
| gauge | standard gauge ⓘ |
| hasBranch |
Branch to Noida Electronic City
ⓘ
Branch to Vaishali ⓘ |
| hasInterchangeWith |
Green Line (Delhi Metro)
ⓘ
Magenta Line (Delhi Metro) ⓘ Pink Line (Delhi Metro) ⓘ Red Line (Delhi Metro) ⓘ Violet Line (Delhi Metro) ⓘ Yellow Line (Delhi Metro) ⓘ |
| isBackboneOf |
Delhi Metro east–west corridor
ⓘ
linked to:
Blue Line (Delhi Metro)
|
| isMajorCorridorOf |
Delhi urban transport network
ⓘ
linked to:
Delhi Metro
|
| lineColor | blue ⓘ |
| locatedIn |
Delhi
ⓘ
National Capital Region ⓘ |
| operator | Delhi Metro Rail Corporation ⓘ |
| ownedBy | Delhi Metro Rail Corporation ⓘ |
| partOf | Delhi Metro ⓘ |
| primaryFunction | mass rapid transit for commuters in Delhi NCR ⓘ |
| safetyFeatures |
CCTV surveillance
ⓘ
fire safety equipment ⓘ public address system ⓘ |
| serves |
Delhi
ⓘ
Ghaziabad ⓘ Noida ⓘ |
| system |
Delhi Metro Rail Network
ⓘ
linked to:
Delhi Metro
|
| ticketing |
contactless smart card
ⓘ
token-based single journey tickets ⓘ |
| transitType | rapid transit ⓘ |
| usesRollingStock | standard-gauge metro trains ⓘ |
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: Blue Line (Delhi Metro) Description of subject: 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.
Referenced by (42)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Pink Line
subject linked to:
Red Line
subject linked to:
Yellow Line
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
subject linked to:
Mandi House
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
subject linked to:
Line 7
linked to: Blue Line (Delhi Metro)
subject linked to:
Line 2
linked to: Blue Line (Delhi Metro)
subject linked to:
Line 3
subject linked to:
Line 4
subject linked to:
Line 4
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
subject linked to:
Delhi Metro Patel Nagar station
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)
linked to: Blue Line (Delhi Metro)