Colombo–Badulla railway line
E1042445
The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Colombo–Badulla railway line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T13480196 — 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: Colombo–Badulla railway line Context triple: [Up-Country, transportConnection, Colombo–Badulla railway line]
-
A.
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.
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B.
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.
-
C.
Eastern Line (Sri Lanka)
Eastern Line (Sri Lanka) is a major railway route in Sri Lanka that connects the island’s eastern regions with the national rail network, serving key towns and facilitating passenger and freight transport.
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D.
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.
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E.
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.
- 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: Colombo–Badulla railway line Target entity description: The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
-
A.
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.
-
B.
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.
-
C.
Eastern Line (Sri Lanka)
Eastern Line (Sri Lanka) is a major railway route in Sri Lanka that connects the island’s eastern regions with the national rail network, serving key towns and facilitating passenger and freight transport.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
railway route ⓘ |
| alsoKnownAs | Main Line NERFINISHED ⓘ |
| connectsCity |
Badulla
NERFINISHED
ⓘ
Bandarawela NERFINISHED ⓘ Colombo NERFINISHED ⓘ Hatton NERFINISHED ⓘ Kandy NERFINISHED ⓘ Nanu Oya NERFINISHED ⓘ |
| connectsRegion |
Central Province of Sri Lanka
NERFINISHED
ⓘ
Colombo metropolitan region NERFINISHED ⓘ Sri Lankan Up-Country NERFINISHED ⓘ Uva Province of Sri Lanka NERFINISHED ⓘ |
| constructionStartedBy | British colonial administration NERFINISHED ⓘ |
| country | Sri Lanka ⓘ |
| electrification | not electrified ⓘ |
| endPoint | Badulla railway station NERFINISHED ⓘ |
| gauge | 1,676 mm broad gauge ⓘ |
| hasService |
Night Mail train
NERFINISHED
ⓘ
Podi Menike train NERFINISHED ⓘ Udarata Menike train NERFINISHED ⓘ |
| hasStructure |
Demodara Loop
NERFINISHED
ⓘ
Nine Arches Bridge NERFINISHED ⓘ railway tunnels in central highlands ⓘ |
| historicalPurpose |
tea transport
ⓘ
transport of plantation products ⓘ |
| knownFor |
mountain scenery
ⓘ
scenic views ⓘ tea plantation landscapes ⓘ tourist train services ⓘ |
| operator | Sri Lanka Railways NERFINISHED ⓘ |
| partOf | Sri Lanka Railways network NERFINISHED ⓘ |
| passesThrough |
Badulla District
NERFINISHED
ⓘ
Ella NERFINISHED ⓘ Haputale NERFINISHED ⓘ Kandy NERFINISHED ⓘ Nanu Oya NERFINISHED ⓘ Nuwara Eliya District NERFINISHED ⓘ Sri Lanka Central Highlands NERFINISHED ⓘ |
| primaryUse | passenger transport ⓘ |
| railwaySystem | Sri Lanka Railways broad-gauge system NERFINISHED ⓘ |
| secondaryUse | freight transport ⓘ |
| startPoint | Colombo Fort railway station NERFINISHED ⓘ |
| status | operational ⓘ |
| terminus |
Badulla railway station
NERFINISHED
ⓘ
Colombo Fort railway station NERFINISHED ⓘ |
| terrain |
hilly central highlands
ⓘ
mountainous ⓘ |
| tourismImportance | major tourist attraction in Sri Lanka ⓘ |
| trackConfiguration | single track ⓘ |
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: Colombo–Badulla railway line Description of subject: The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.