Green Line
E445224
The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Green Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3258260 — 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: Green Line Context triple: [Chennai Metro, line, Green Line]
-
A.
Green Line
The Green Line is one of the main rapid transit routes of the Dubai Metro, serving key districts along Dubai Creek and connecting important commercial and residential areas.
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B.
Green Line
Green Line is a hybrid-oriented trim level of the Saturn Aura midsize sedan designed to offer improved fuel efficiency and lower emissions.
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C.
Green Line
The Green Line is one of the color-coded rapid transit routes in the Washington Metro system, serving key neighborhoods in Washington, D.C. and parts of Maryland.
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D.
Green Line
The Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides as part of the Chicago "L" system.
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E.
Green Line
The Green Line is one of the color-coded routes of the Tyne and Wear Metro rapid transit system serving the Newcastle upon Tyne area in northeast England.
- 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: Green Line Target entity description: The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
-
A.
Green Line
The Green Line is one of the main rapid transit corridors of Bengaluru’s Namma Metro system, running north–south across the city.
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B.
Green Line
The Green Line is one of the major corridors of the Delhi Metro network, serving western parts of Delhi and connecting key residential and industrial areas to the rest of the city.
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C.
Green Line
The Green Line is one of the main rapid transit routes of the Dubai Metro, serving key districts along Dubai Creek and connecting important commercial and residential areas.
-
D.
Green Line
The Green Line is one of the main lines of the Lisbon Metro rapid transit system, serving several central and riverside neighborhoods of Portugal’s capital.
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E.
Green Line
The Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides as part of the Chicago "L" system.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
rapid transit line ⓘ |
| alsoKnownAs |
Line 2 (Chennai Metro)
ⓘ
linked to:
Chennai Metro
|
| character |
elevated
ⓘ
underground ⓘ |
| connectsAreaType | key areas of Chennai ⓘ |
| country | India ⓘ |
| electrification | 25 kV AC overhead catenary ⓘ |
| fareSystem | Chennai Metro fare system ⓘ |
| gauge | standard gauge ⓘ |
| hasColor | green ⓘ |
| hasRollingStockType | standard-gauge metro trains ⓘ |
| hasStationType |
elevated stations
ⓘ
underground stations ⓘ |
| locatedIn |
Chennai
ⓘ
India ⓘ Tamil Nadu ⓘ |
| numberOfTracks | 2 ⓘ |
| operator |
Chennai Metro Rail Limited
ⓘ
linked to:
Chennai Metro
|
| owner |
Chennai Metro Rail Limited
ⓘ
linked to:
Chennai Metro
|
| partOf | Chennai Metro ⓘ |
| partOfNetwork |
Phase I of Chennai Metro
ⓘ
linked to:
Chennai Metro
|
| servesCity | Chennai ⓘ |
| systemType | rapid transit ⓘ |
| transitType | urban 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: Green Line Description of subject: The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.