Coastal Line
E549466
Coastal Line is a major Sri Lankan railway route running along the island’s western and southern coasts, linking Colombo with key coastal towns and cities.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Coastal Line canonical | 9 |
How this entity was disambiguated
This entity first appeared as the object of triple T5798458 — 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: Coastal Line Context triple: [Colombo Fort railway station, connectsTo, Coastal Line]
-
A.
Eastern Line
The Eastern Line is a suburban rail service in Auckland, New Zealand, running between the city centre and eastern suburbs as part of the Auckland rail network.
-
B.
Suburban Line
The Suburban Line is a commuter rail service of the Beijing Subway system that connects the city center with outlying suburban districts.
-
C.
Myrtle Avenue Line
The Myrtle Avenue Line is a New York City Subway line in Brooklyn and Queens, primarily served by the M train.
-
D.
Heritage Corridor line
The Heritage Corridor line is a Metra commuter rail service in the Chicago area that runs southwest from downtown Chicago to Joliet, primarily following the historic Illinois & Michigan Canal corridor.
-
E.
Coast Line
Coast Line was a major Southern Pacific Railroad route running along California’s Pacific coast, connecting key cities such as Los Angeles and San Francisco.
- 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: Coastal Line Target entity description: Coastal Line is a major Sri Lankan railway route running along the island’s western and southern coasts, linking Colombo with key coastal towns and cities.
-
A.
Eastern Line
The Eastern Line is a suburban rail service in Auckland, New Zealand, running between the city centre and eastern suburbs as part of the Auckland rail network.
-
B.
Suburban Line
The Suburban Line is a commuter rail service of the Beijing Subway system that connects the city center with outlying suburban districts.
-
C.
Myrtle Avenue Line
The Myrtle Avenue Line is a New York City Subway line in Brooklyn and Queens, primarily served by the M train.
-
D.
Heritage Corridor line
The Heritage Corridor line is a Metra commuter rail service in the Chicago area that runs southwest from downtown Chicago to Joliet, primarily following the historic Illinois & Michigan Canal corridor.
-
E.
Coast Line
Coast Line was a major Southern Pacific Railroad route running along California’s Pacific coast, connecting key cities such as Los Angeles and San Francisco.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
railway line
ⓘ
railway route ⓘ |
| connectsCity |
Colombo
ⓘ
Galle ⓘ Matara ⓘ |
| connectsToLine |
Kelani Valley Line via Colombo area
ⓘ
Main Line at Colombo Fort ⓘ |
| connectsTown |
Aluthgama
ⓘ
Ambalangoda ⓘ Bentota ⓘ Hikkaduwa ⓘ Kalutara ⓘ Matugama (via branch) ⓘ Mount Lavinia ⓘ Weligama ⓘ |
| country | Sri Lanka ⓘ |
| electrification | not electrified ⓘ |
| endPoint | Matara railway station ⓘ |
| followsFeature |
southern coast of Sri Lanka
ⓘ
western coast of Sri Lanka ⓘ |
| gauge |
1,676 mm
ⓘ
broad gauge ⓘ |
| historicalSignificance | one of the earliest railway routes in Sri Lanka ⓘ |
| impact |
facilitates daily commuting to Colombo from coastal suburbs
ⓘ
supports tourism along Sri Lanka’s southwest coast ⓘ |
| infrastructureType | heavy rail ⓘ |
| locale | western and southern coastal belt of Sri Lanka ⓘ |
| notableFor |
scenic coastal views
ⓘ
tourist traffic to southern beaches ⓘ |
| operator | Sri Lanka Railways ⓘ |
| owner | Sri Lanka Railways ⓘ |
| partOfNetwork |
Sri Lanka Railways network
ⓘ
linked to:
Sri Lanka Railways
|
| passesNear | Indian Ocean ⓘ |
| primaryUse | passenger transport ⓘ |
| regionServed |
Southern Province
ⓘ
Western Province ⓘ |
| safetyChallenge | vulnerability to coastal erosion and sea spray ⓘ |
| secondaryUse | freight transport ⓘ |
| serviceType |
commuter rail
ⓘ
express trains ⓘ intercity rail ⓘ slow trains ⓘ |
| startingPoint | Colombo Fort railway station ⓘ |
| status | operational ⓘ |
| terminus |
Colombo Fort railway station
ⓘ
Matara railway station ⓘ |
| trackConfiguration | single track with some double-track sections ⓘ |
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: Coastal Line Description of subject: Coastal Line is a major Sri Lankan railway route running along the island’s western and southern coasts, linking Colombo with key coastal towns and cities.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.