Main Line (Sri Lanka)
E549054
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Main Line (Sri Lanka) canonical | 3 |
| Colombo–Badulla route | 1 |
| Main Line (Sri Lanka Railways) | 1 |
| Main Line railway of Sri Lanka | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5798459 — 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: Main Line (Sri Lanka) Context triple: [Colombo Fort railway station, connectsTo, Main Line (Sri Lanka)]
-
A.
Southern Expressway of Sri Lanka
The Southern Expressway of Sri Lanka is a major controlled-access highway linking Colombo with key southern cities, significantly reducing travel time and boosting regional economic development.
-
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.
Sri Lankan national highway network
The Sri Lankan national highway network is the country’s primary system of major roads that connects key cities, ports, and regions across the island to support transport, trade, and travel.
-
D.
Sanjaya line
The Sanjaya line was an early Javanese Hindu dynasty that ruled parts of Central Java in present-day Indonesia during the 8th and 9th centuries.
-
E.
Aluthgama
Aluthgama is a coastal town in southwestern Sri Lanka known for its beaches, tourism, and location along major road and rail routes.
- 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: Main Line (Sri Lanka) Target entity description: 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.
-
A.
Southern Expressway of Sri Lanka
The Southern Expressway of Sri Lanka is a major controlled-access highway linking Colombo with key southern cities, significantly reducing travel time and boosting regional economic development.
-
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.
Sri Lankan national highway network
The Sri Lankan national highway network is the country’s primary system of major roads that connects key cities, ports, and regions across the island to support transport, trade, and travel.
-
D.
Sanjaya line
The Sanjaya line was an early Javanese Hindu dynasty that ruled parts of Central Java in present-day Indonesia during the 8th and 9th centuries.
-
E.
Aluthgama
Aluthgama is a coastal town in southwestern Sri Lanka known for its beaches, tourism, and location along major road and rail routes.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail line
ⓘ
passenger rail line ⓘ railway line ⓘ |
| connectsCity |
Badulla
NERFINISHED
ⓘ
Bandarawela NERFINISHED ⓘ Colombo NERFINISHED ⓘ Haputale NERFINISHED ⓘ Kandy NERFINISHED ⓘ Nanu Oya NERFINISHED ⓘ |
| connectsPort | Port of Colombo (via Colombo Fort) NERFINISHED ⓘ |
| constructionStart | 19th century ⓘ |
| country | Sri Lanka ⓘ |
| electrification | not electrified ⓘ |
| endingPoint | Badulla railway station NERFINISHED ⓘ |
| freightType |
agricultural products
ⓘ
general goods ⓘ plantation products ⓘ |
| gauge | 1,676 mm broad gauge ⓘ |
| hasJunction |
Peradeniya Junction
NERFINISHED
ⓘ
Ragama Junction NERFINISHED ⓘ |
| historicalPurpose |
coffee transport
ⓘ
tea transport ⓘ transport of plantation products ⓘ |
| maximumElevationApprox | over 1,800 metres above sea level ⓘ |
| notableService |
Night Mail train
NERFINISHED
ⓘ
Podi Menike express train NERFINISHED ⓘ Udarata Menike express train NERFINISHED ⓘ |
| openedForTraffic | late 19th century ⓘ |
| operator | Sri Lanka Railways NERFINISHED ⓘ |
| owner | Sri Lanka Railways NERFINISHED ⓘ |
| passesThroughRegion | Sri Lankan central highlands NERFINISHED ⓘ |
| passesThroughTown |
Bandarawela
NERFINISHED
ⓘ
Ella NERFINISHED ⓘ Gampaha NERFINISHED ⓘ Haputale NERFINISHED ⓘ Hatton NERFINISHED ⓘ Nanu Oya NERFINISHED ⓘ Peradeniya NERFINISHED ⓘ Ragama NERFINISHED ⓘ |
| primaryUse |
freight transport
ⓘ
passenger transport ⓘ |
| railNetwork | Sri Lanka Railways network ⓘ |
| roleInNetwork | backbone of inland rail transport in Sri Lanka ⓘ |
| scenicReputation | one of the most scenic railway routes in Sri Lanka ⓘ |
| startingPoint | Colombo Fort railway station NERFINISHED ⓘ |
| status | operational ⓘ |
| terminus |
Badulla railway station
NERFINISHED
ⓘ
Colombo Fort railway station NERFINISHED ⓘ |
| trackConfiguration | single track with passing loops ⓘ |
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: Main Line (Sri Lanka) Description of subject: 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.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Colombo–Badulla route
this entity surface form:
Main Line railway of Sri Lanka
this entity surface form:
Main Line (Sri Lanka Railways)