Mannar Line
E1012537
Mannar Line is a railway line in Sri Lanka that connects the mainland rail network to the Mannar region in the country’s northwest.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mannar Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T12982882 — 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: Mannar Line Context triple: [Sri Lanka Railways, operatesLine, Mannar Line]
-
A.
Suigun Line
The Suigun Line is a regional railway line in eastern Japan that connects Mito in Ibaraki Prefecture with inland areas, providing local passenger rail services through rural communities.
-
B.
Ljabru Line
The Ljabru Line is a tram line in Oslo, Norway, forming part of the city’s light rail network and serving the southeastern district of Ljabru.
-
C.
Taita Line
The Taita Line is a regional railway line in Japan connecting Gifu and Tajimi, serving as a local commuter and intercity link in central Honshu.
-
D.
Tua Line
Tua Line is a scenic narrow-gauge railway in northeastern Portugal, known for running along the Tua River through rugged, picturesque landscapes.
-
E.
Pangrango Line
The Pangrango Line is a passenger railway route in West Java, Indonesia, connecting Bogor with Sukabumi and serving as an important regional commuter and intercity link.
- 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: Mannar Line Target entity description: Mannar Line is a railway line in Sri Lanka that connects the mainland rail network to the Mannar region in the country’s northwest.
-
A.
Suigun Line
The Suigun Line is a regional railway line in eastern Japan that connects Mito in Ibaraki Prefecture with inland areas, providing local passenger rail services through rural communities.
-
B.
Ljabru Line
The Ljabru Line is a tram line in Oslo, Norway, forming part of the city’s light rail network and serving the southeastern district of Ljabru.
-
C.
Taita Line
The Taita Line is a regional railway line in Japan connecting Gifu and Tajimi, serving as a local commuter and intercity link in central Honshu.
-
D.
Tua Line
Tua Line is a scenic narrow-gauge railway in northeastern Portugal, known for running along the Tua River through rugged, picturesque landscapes.
-
E.
Pangrango Line
The Pangrango Line is a passenger railway route in West Java, Indonesia, connecting Bogor with Sukabumi and serving as an important regional commuter and intercity link.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connectsRegion |
Mannar region
ⓘ
Sri Lankan mainland ⓘ |
| connectsTo |
Sri Lanka Railways main network
ⓘ
Sri Lanka mainland rail network ⓘ
linked to:
Sri Lanka Railways
|
| country | Sri Lanka ⓘ |
| electrification | non-electrified ⓘ |
| gauge | broad gauge ⓘ |
| geographicDirection | northwest ⓘ |
| hasMode | rail transport ⓘ |
| historicalUse |
freight transport
ⓘ
passenger transport ⓘ |
| infrastructureType | heavy rail ⓘ |
| locatedIn | Northwestern Sri Lanka ⓘ |
| locatedOnIsland | Sri Lanka ⓘ |
| operator | Sri Lanka Railways ⓘ |
| owner | Sri Lanka Railways ⓘ |
| partOf |
Sri Lanka railway network
ⓘ
linked to:
Sri Lanka Railways
|
| primaryFunction | regional connectivity ⓘ |
| regionServed |
Mannar District
ⓘ
Northern Province, Sri Lanka ⓘ |
| status | partly operational ⓘ |
| terminus |
Mannar
ⓘ
linked to:
Mannar region
|
| trackType | 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: Mannar Line Description of subject: Mannar Line is a railway line in Sri Lanka that connects the mainland rail network to the Mannar region in the country’s northwest.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.