Triple
T22231140
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Puttalam Line |
E549467
|
entity |
| Predicate | hasIntermediateStation |
P24280
|
FINISHED |
| Object | Kattuwa railway station |
—
|
NE NERFINISHED |
How this triple was built (3 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: Kattuwa railway station | Statement: [Puttalam Line, hasIntermediateStation, Kattuwa railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Kattuwa railway station Context triple: [Puttalam Line, hasIntermediateStation, Kattuwa railway station]
-
A.
Katni Murwara railway station
Katni Murwara railway station is a major railway junction in Madhya Pradesh, India, serving as an important transit point for passenger and freight trains in the Katni region.
-
B.
Matunga railway station
Matunga railway station is a suburban railway station on Mumbai's Central line, serving the Matunga neighborhood and daily commuters in the city.
-
C.
Urunga railway station
Urunga railway station is a regional train station in New South Wales, Australia, serving the coastal town of Urunga on the North Coast railway line.
-
D.
Oshamambe Station
Oshamambe Station is a key railway hub in southern Hokkaido, Japan, serving as an interchange point for multiple lines and connecting regional and long-distance train services.
-
E.
Soroti Railway Station
Soroti Railway Station is a railway facility serving the town of Soroti in eastern Uganda, connecting it to the national rail network.
- 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: Kattuwa railway station Target entity description: Kattuwa railway station is a local stop on Sri Lanka’s Puttalam railway line, serving the surrounding Kattuwa area with regional train services.
-
A.
Katni Murwara railway station
Katni Murwara railway station is a major railway junction in Madhya Pradesh, India, serving as an important transit point for passenger and freight trains in the Katni region.
-
B.
Matunga railway station
Matunga railway station is a suburban railway station on Mumbai's Central line, serving the Matunga neighborhood and daily commuters in the city.
-
C.
Urunga railway station
Urunga railway station is a regional train station in New South Wales, Australia, serving the coastal town of Urunga on the North Coast railway line.
-
D.
Oshamambe Station
Oshamambe Station is a key railway hub in southern Hokkaido, Japan, serving as an interchange point for multiple lines and connecting regional and long-distance train services.
-
E.
Soroti Railway Station
Soroti Railway Station is a railway facility serving the town of Soroti in eastern Uganda, connecting it to the national rail network.
- F. None of above. chosen
Provenance (2 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_69e11e4102b881909cf47d3768e25c19 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f12bf2a26c81908aaf614d7c75e219 |
completed | April 28, 2026, 9:51 p.m. |
Created at: April 16, 2026, 8:38 p.m.