East–West corridor
E636327
The East–West corridor is a major Kolkata Metro line that runs across the city, connecting its eastern and western parts through an important rapid transit route.
All labels observed (2)
| Label | Occurrences |
|---|---|
| East–West Corridor | 1 |
| East–West corridor canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7015981 — 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: East–West corridor Context triple: [Kolkata Metro, hasLine, East–West corridor]
-
A.
East–West Corridor
The East–West Corridor is a major rapid transit line of the Ahmedabad Metro system in Ahmedabad, India, connecting key areas across the city from east to west.
-
B.
East–West Corridor
The East–West Corridor is a principal rapid transit line of the Lucknow Metro system in Lucknow, India, running across the city in an east–west direction.
-
C.
North–South Corridor
The North–South Corridor is a major metro line of the Ahmedabad Metro system that runs along the city’s north–south axis, connecting key residential and commercial areas.
-
D.
North–South Corridor
The North–South Corridor is a major regional transport and trade route in Southern Africa that links landlocked countries to key seaports through an integrated network of roads and railways.
-
E.
North–South Corridor
The North–South Corridor is a principal metro line of the Lucknow Metro system in Uttar Pradesh, India, running along a north–south axis through the 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: East–West corridor Target entity description: The East–West corridor is a major Kolkata Metro line that runs across the city, connecting its eastern and western parts through an important rapid transit route.
-
A.
East–West Corridor
The East–West Corridor is a principal rapid transit line of the Lucknow Metro system in Lucknow, India, running across the city in an east–west direction.
-
B.
East–West Corridor
The East–West Corridor is a major rapid transit line of the Ahmedabad Metro system in Ahmedabad, India, connecting key areas across the city from east to west.
-
C.
North–South Corridor
The North–South Corridor is a major regional transport and trade route in Southern Africa that links landlocked countries to key seaports through an integrated network of roads and railways.
-
D.
North–South Corridor
The North–South Corridor is a major metro line of the Ahmedabad Metro system that runs along the city’s north–south axis, connecting key residential and commercial areas.
-
E.
North–South Corridor
The North–South Corridor is a principal metro line of the Lucknow Metro system in Uttar Pradesh, India, running along a north–south axis through the city.
- F. None of above. chosen
Statements (19)
| Predicate | Object |
|---|---|
| instanceOf | metro line ⓘ |
| connects |
eastern Kolkata
ⓘ
western Kolkata ⓘ |
| country | India ⓘ |
| hasDirection | east–west ⓘ |
| hasFunction |
east–west connectivity in Kolkata
ⓘ
urban mass transit ⓘ |
| hasMode | rail ⓘ |
| isDesignedFor | passenger transport ⓘ |
| isImportantFor | cross-city travel in Kolkata ⓘ |
| isMajorRouteIn |
Kolkata Metro network
ⓘ
linked to:
Kolkata Metro
|
| isPartOf | urban rail system of Kolkata ⓘ |
| isPublicTransportInfrastructureOf |
Kolkata
ⓘ
linked to:
Calcutta
|
| locatedIn |
India
ⓘ
Kolkata ⓘ
linked to:
Calcutta
West Bengal ⓘ |
| partOf | Kolkata Metro ⓘ |
| serves |
Kolkata metropolitan area
ⓘ
linked to:
Kolkata Metropolitan Area
|
| transportType | rapid transit ⓘ |
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: East–West corridor Description of subject: The East–West corridor is a major Kolkata Metro line that runs across the city, connecting its eastern and western parts through an important rapid transit route.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: East–West corridor