Triple
T22231138
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Puttalam Line |
E549467
|
entity |
| Predicate | hasIntermediateStation |
P24280
|
FINISHED |
| Object | Nattandiya 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: Nattandiya railway station | Statement: [Puttalam Line, hasIntermediateStation, Nattandiya railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nattandiya railway station Context triple: [Puttalam Line, hasIntermediateStation, Nattandiya railway station]
-
A.
Nalgonda railway station
Nalgonda railway station is a regional rail hub in Telangana, India, serving the town of Nalgonda with passenger and express train connections.
-
B.
Khandala railway station
Khandala railway station is a small hill-station stop on the Mumbai–Pune railway route in Maharashtra, India, serving the popular tourist town of Khandala in the Western Ghats.
-
C.
Nandgaon railway station
Nandgaon railway station is a local rail transit stop in Nandgaon, India, providing passenger train services and connectivity to surrounding regions.
-
D.
Tandur railway station
Tandur railway station is a regional rail stop in Telangana, India, serving the town of Tandur on routes managed by the Hyderabad railway division of South Central Railway.
-
E.
Palani railway station
Palani railway station is a regional rail hub in Tamil Nadu, India, serving the pilgrimage town of Palani and providing connectivity to major cities in the region.
- 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: Nattandiya railway station Target entity description: Nattandiya railway station is a local passenger rail stop in Sri Lanka situated along the Puttalam Line, serving the town of Nattandiya and surrounding areas.
-
A.
Nalgonda railway station
Nalgonda railway station is a regional rail hub in Telangana, India, serving the town of Nalgonda with passenger and express train connections.
-
B.
Khandala railway station
Khandala railway station is a small hill-station stop on the Mumbai–Pune railway route in Maharashtra, India, serving the popular tourist town of Khandala in the Western Ghats.
-
C.
Nandgaon railway station
Nandgaon railway station is a local rail transit stop in Nandgaon, India, providing passenger train services and connectivity to surrounding regions.
-
D.
Tandur railway station
Tandur railway station is a regional rail stop in Telangana, India, serving the town of Tandur on routes managed by the Hyderabad railway division of South Central Railway.
-
E.
Palani railway station
Palani railway station is a regional rail hub in Tamil Nadu, India, serving the pilgrimage town of Palani and providing connectivity to major cities in the region.
- 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.