Sealdah–Kalyani line
E702410
The Sealdah–Kalyani line is a suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station in central Kolkata with the town of Kalyani and serving daily commuter traffic.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sealdah–Kalyani line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7957262 — 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: Sealdah–Kalyani line Context triple: [Kalyani, railwayLine, Sealdah–Kalyani line]
-
A.
Sealdah–Ranaghat line
The Sealdah–Ranaghat line is a major suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Ranaghat and serving numerous densely populated towns along the route.
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B.
Howrah–Tarakeswar line
The Howrah–Tarakeswar line is a suburban railway corridor in West Bengal, India, connecting Howrah with the temple town of Tarakeswar and forming part of the Kolkata Suburban Railway network.
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C.
Sealdah–Bangaon railway line
The Sealdah–Bangaon railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Bangaon and serving numerous intermediate urban and suburban localities.
-
D.
Sealdah–Hasnabad railway line
The Sealdah–Hasnabad railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah with Hasnabad and serving numerous intermediate stations including Dum Dum.
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E.
Howrah–New Jalpaiguri line
The Howrah–New Jalpaiguri line is a major railway route in the Indian state of West Bengal that connects Kolkata’s Howrah station with New Jalpaiguri, serving as a key corridor between southern and northern Bengal.
- 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: Sealdah–Kalyani line Target entity description: The Sealdah–Kalyani line is a suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station in central Kolkata with the town of Kalyani and serving daily commuter traffic.
-
A.
Sealdah–Ranaghat line
The Sealdah–Ranaghat line is a major suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Ranaghat and serving numerous densely populated towns along the route.
-
B.
Howrah–Tarakeswar line
The Howrah–Tarakeswar line is a suburban railway corridor in West Bengal, India, connecting Howrah with the temple town of Tarakeswar and forming part of the Kolkata Suburban Railway network.
-
C.
Sealdah–Bangaon railway line
The Sealdah–Bangaon railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Bangaon and serving numerous intermediate urban and suburban localities.
-
D.
Sealdah–Hasnabad railway line
The Sealdah–Hasnabad railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah with Hasnabad and serving numerous intermediate stations including Dum Dum.
-
E.
Howrah–New Jalpaiguri line
The Howrah–New Jalpaiguri line is a major railway route in the Indian state of West Bengal that connects Kolkata’s Howrah station with New Jalpaiguri, serving as a key corridor between southern and northern Bengal.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
railway corridor
ⓘ
suburban railway line ⓘ |
| cityServed |
Kalyani
ⓘ
Kolkata ⓘ
linked to:
Calcutta
|
| connects |
Kalyani town
ⓘ
central Kolkata ⓘ
linked to:
Central Kolkata
|
| country | India ⓘ |
| electrification | 25 kV AC overhead line ⓘ |
| electrified | yes ⓘ |
| endPoint | Kalyani ⓘ |
| gauge | broad gauge ⓘ |
| locatedIn |
Kolkata metropolitan area
ⓘ
linked to:
Kolkata Metropolitan Area
West Bengal ⓘ |
| locatedInUrbanArea |
Kolkata metropolitan area
ⓘ
linked to:
Kolkata Metropolitan Area
|
| network | Indian Railways ⓘ |
| operator | Eastern Railway zone ⓘ |
| owner | Indian Railways ⓘ |
| partOf | Kolkata Suburban Railway ⓘ |
| primaryFunction | suburban commuter transport ⓘ |
| railwayDivision | Sealdah railway division ⓘ |
| regionServed |
Nadia district
ⓘ
North 24 Parganas district ⓘ |
| serves | daily commuter traffic ⓘ |
| serviceType | suburban rail service ⓘ |
| startPoint | Sealdah railway station ⓘ |
| state | West Bengal ⓘ |
| terminus |
Kalyani
ⓘ
Sealdah railway station ⓘ |
| trafficType | passenger ⓘ |
| usesRollingStockType | Electric Multiple Unit ⓘ |
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: Sealdah–Kalyani line Description of subject: The Sealdah–Kalyani line is a suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station in central Kolkata with the town of Kalyani and serving daily commuter traffic.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.