Triple
T3025960
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Colombo–Matara railway line |
E82574
|
entity |
| Predicate | owner |
P347
|
FINISHED |
| Object |
Sri Lanka Railways
Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
|
E321694
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Sri Lanka Railways | Statement: [Colombo–Matara railway line, owner, Sri Lanka Railways]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sri Lanka Railways Context triple: [Colombo–Matara railway line, owner, Sri Lanka Railways]
-
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.
SriLankan Airlines
SriLankan Airlines is the flag carrier of Sri Lanka, operating international passenger and cargo flights primarily across Asia, the Middle East, and Europe from its hub in Colombo.
-
C.
State Railway of Thailand
The State Railway of Thailand is the national state-owned rail operator responsible for managing and running most of Thailand’s railway services and infrastructure.
-
D.
Colombo Fort railway station
Colombo Fort railway station is the main railway hub in Colombo, Sri Lanka, serving as a central junction for both suburban and long-distance train services across the country.
-
E.
North Central Province, Sri Lanka
North Central Province, Sri Lanka is a largely rural administrative region known for its Sinhalese majority population, ancient irrigation systems, and important archaeological sites such as Anuradhapura.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Sri Lanka Railways Triple: [Colombo–Matara railway line, owner, Sri Lanka Railways]
Generated description
Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sri Lanka Railways Target entity description: Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
-
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.
SriLankan Airlines
SriLankan Airlines is the flag carrier of Sri Lanka, operating international passenger and cargo flights primarily across Asia, the Middle East, and Europe from its hub in Colombo.
-
C.
State Railway of Thailand
The State Railway of Thailand is the national state-owned rail operator responsible for managing and running most of Thailand’s railway services and infrastructure.
-
D.
Colombo Fort railway station
Colombo Fort railway station is the main railway hub in Colombo, Sri Lanka, serving as a central junction for both suburban and long-distance train services across the country.
-
E.
North Central Province, Sri Lanka
North Central Province, Sri Lanka is a largely rural administrative region known for its Sinhalese majority population, ancient irrigation systems, and important archaeological sites such as Anuradhapura.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ad8b1fb34081908c1b873e2b7273e1 |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad9abc78b48190a5283e7407a78fe7 |
completed | March 8, 2026, 3:50 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b1deb6dc8c8190a5714894b9ca24a1 |
completed | March 11, 2026, 9:29 p.m. |
| NEDg | Description generation | batch_69b1df85a39c8190ada558de530e3772 |
completed | March 11, 2026, 9:32 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b1e3e6aeb48190914d62616ea0c7e1 |
completed | March 11, 2026, 9:51 p.m. |
Created at: March 8, 2026, 3 p.m.