Line 4
E830002
Line 4 is a branch of the Delhi Metro’s Blue Line that serves as a connector route within the system’s broader east–west corridor.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9908798 — 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: Line 4 Context triple: [Blue Line (Delhi Metro), lineNumber, Line 4]
-
A.
Line 4
Line 4 is a route of Mexico City’s Metrobús bus rapid transit system that serves key corridors with dedicated lanes and high-capacity articulated buses.
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B.
Line 4
Line 4 is a major line of the Santiago Metro in Chile, serving key residential and commercial areas in the southeastern part of the city.
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C.
Line 4
Line 4 is a major north–south rapid transit route in the Beijing Subway system, serving key commercial, residential, and university areas of the city.
-
D.
Line 4
Line 4 is a rapid transit line of the Guangzhou Metro system in Guangzhou, China, serving key urban and suburban areas along its north–south corridor.
-
E.
Line 4
Line 4 is one of the main lines of the Tehran Metro rapid transit system, serving key east–west corridors across Iran’s capital city.
- 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: Line 4 Target entity description: Line 4 is a branch of the Delhi Metro’s Blue Line that serves as a connector route within the system’s broader east–west corridor.
-
A.
Line 4
Line 4 is a rapid transit route of the STC Metro system, serving as one of its main urban rail lines.
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B.
Line 4
Line 4 is a major north–south route of the Seoul Metropolitan Subway system, connecting central Seoul with surrounding suburban areas.
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C.
Line 4
Line 4 is a rapid transit line of the Nanjing Metro system in Nanjing, China, serving as one of the city's main urban rail corridors.
-
D.
Line 4
Line 4 is a route of Mexico City’s Metrobús bus rapid transit system that serves key corridors with dedicated lanes and high-capacity articulated buses.
-
E.
Line 4
Line 4 is one of the main north–south lines of the Paris Métro, known for serving central Paris and connecting key railway stations and neighborhoods.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | rapid transit line ⓘ |
| character |
at-grade
ⓘ
elevated ⓘ |
| color | blue ⓘ |
| connectsWith |
Blue Line (Delhi Metro)
NERFINISHED
ⓘ
other Delhi Metro lines via interchange stations ⓘ |
| corridorOrientation | east–west ⓘ |
| country | India ⓘ |
| electrification | overhead catenary ⓘ |
| fareMediumAccepted |
Delhi Metro smart card
ⓘ
Delhi Metro tokens ⓘ |
| fareSystem | Delhi Metro common ticketing system ⓘ |
| function | connector route within the Blue Line corridor ⓘ |
| isBranchOf | Blue Line (Delhi Metro) NERFINISHED ⓘ |
| locatedIn |
Delhi
NERFINISHED
ⓘ
National Capital Region NERFINISHED ⓘ |
| operator | Delhi Metro Rail Corporation NERFINISHED ⓘ |
| owner | Delhi Metro Rail Corporation NERFINISHED ⓘ |
| partOf | Blue Line (Delhi Metro) NERFINISHED ⓘ |
| serves | commuters in Delhi ⓘ |
| system | Delhi Metro NERFINISHED ⓘ |
| trackGauge | 1,676 mm broad gauge ⓘ |
| transitType | metro ⓘ |
| usesRollingStock | Delhi Metro broad-gauge trains NERFINISHED ⓘ |
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: Line 4 Description of subject: Line 4 is a branch of the Delhi Metro’s Blue Line that serves as a connector route within the system’s broader east–west corridor.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Blue Line (Delhi Metro)