Northern Line (Sri Lanka)
E1017795
The Northern Line (Sri Lanka) is a major railway route that connects Colombo with the northern regions of Sri Lanka, including the city of Jaffna, serving as a key corridor for passenger and freight transport.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Northern Line (Sri Lanka) canonical | 3 |
| Northern Line (Sri Lanka Railways) | 1 |
| Northern Line (Sri Lanka) via Maho Junction | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12982879 — 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: Northern Line (Sri Lanka) Context triple: [Sri Lanka Railways, operatesLine, Northern Line (Sri Lanka)]
-
A.
Puttalam Line
The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
-
B.
Colombo–Matara railway line
The Colombo–Matara railway line is a coastal rail route in southwestern Sri Lanka that connects the capital region with major southern cities, including Galle and Matara.
-
C.
Main Line (Sri Lanka)
Main Line (Sri Lanka) is a major railway route running inland from Colombo through the central highlands, serving as one of the country’s primary passenger and freight corridors.
-
D.
Colombo–Trincomalee route
The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
-
E.
Colombo–Batticaloa route
The Colombo–Batticaloa route is a major intercity railway line in Sri Lanka that connects the capital Colombo with the eastern city of Batticaloa, traversing diverse regions across the island.
- 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: Northern Line (Sri Lanka) Target entity description: The Northern Line (Sri Lanka) is a major railway route that connects Colombo with the northern regions of Sri Lanka, including the city of Jaffna, serving as a key corridor for passenger and freight transport.
-
A.
Puttalam Line
The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
-
B.
Colombo–Matara railway line
The Colombo–Matara railway line is a coastal rail route in southwestern Sri Lanka that connects the capital region with major southern cities, including Galle and Matara.
-
C.
Main Line (Sri Lanka)
Main Line (Sri Lanka) is a major railway route running inland from Colombo through the central highlands, serving as one of the country’s primary passenger and freight corridors.
-
D.
Colombo–Trincomalee route
The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
-
E.
Colombo–Batticaloa route
The Colombo–Batticaloa route is a major intercity railway line in Sri Lanka that connects the capital Colombo with the eastern city of Batticaloa, traversing diverse regions across the island.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
railway route ⓘ |
| category | Railway lines in Sri Lanka ⓘ |
| connectsCity |
Colombo
ⓘ
Jaffna ⓘ |
| connectsRegion |
North Western Province
ⓘ
Northern Province ⓘ |
| connectsToLine |
Coastal Line (Sri Lanka)
ⓘ
linked to:
Coastal line (Sri Lanka)
Main Line (Sri Lanka) ⓘ |
| connectsToPort |
Colombo Port (via network)
ⓘ
linked to:
Colombo Harbour
|
| country | Sri Lanka ⓘ |
| electrification | not electrified ⓘ |
| gauge | broad gauge ⓘ |
| historicalEvent |
northern sections were reconstructed and reopened in the 2010s
ⓘ
sections were damaged and closed during the Sri Lankan Civil War ⓘ |
| importance | major rail corridor between Colombo and northern Sri Lanka ⓘ |
| infrastructureType | heavy rail ⓘ |
| languageOfName |
Sinhala
ⓘ
Tamil ⓘ |
| locatedIn | Sri Lanka ⓘ |
| operator | Sri Lanka Railways ⓘ |
| ownedBy | Government of Sri Lanka ⓘ |
| partOfNetwork |
Sri Lanka Railways network
ⓘ
linked to:
Sri Lanka Railways
|
| passesThroughCity |
Anuradhapura
ⓘ
Jaffna ⓘ Kilinochchi ⓘ Vavuniya ⓘ
linked to:
Vavuniya town
|
| primaryUse |
freight transport
ⓘ
passenger transport ⓘ |
| reconstructionSupport | funding and technical assistance from India for post-war rebuilding ⓘ |
| role | key link between northern Sri Lanka and the capital Colombo ⓘ |
| servesCity |
Colombo
ⓘ
Jaffna ⓘ |
| servesProvince |
North Western Province
ⓘ
Northern Province ⓘ Western Province ⓘ |
| serviceType |
commuter trains
ⓘ
express trains ⓘ intercity trains ⓘ |
| status | operational ⓘ |
| terminus |
Colombo Fort railway station
ⓘ
Kankesanthurai railway station ⓘ |
| trackGauge | 1,676 mm ⓘ |
| trackType | single track on most sections ⓘ |
| usedFor |
transport of agricultural products
ⓘ
transport of general freight ⓘ |
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: Northern Line (Sri Lanka) Description of subject: The Northern Line (Sri Lanka) is a major railway route that connects Colombo with the northern regions of Sri Lanka, including the city of Jaffna, serving as a key corridor for passenger and freight transport.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Northern Line (Sri Lanka)
linked to: Northern Line (Sri Lanka)