Triple
T13901059
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nilgiris district |
E334221
|
entity |
| Predicate | railwayAttraction |
P78188
|
FINISHED |
| Object | Nilgiri Mountain Railway |
E179705
|
NE FINISHED |
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: Nilgiri Mountain Railway | Statement: [Nilgiris district, railwayAttraction, Nilgiri Mountain Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nilgiri Mountain Railway Context triple: [Nilgiris district, railwayAttraction, Nilgiri Mountain Railway]
-
A.
Nilgiri Mountain Railway
chosen
The Nilgiri Mountain Railway is a historic narrow-gauge railway in southern India, famed for its steep rack-and-pinion route through the Nilgiri Hills and its designation as a UNESCO World Heritage Site.
-
B.
Darjeeling Himalayan Railway
The Darjeeling Himalayan Railway is a historic narrow-gauge mountain railway in India, famed for its scenic route through the Himalayas and its iconic steam-powered "toy train."
-
C.
Kalka–Shimla Railway
The Kalka–Shimla Railway is a historic narrow-gauge mountain railway in India, renowned for its scenic Himalayan route and UNESCO World Heritage status.
-
D.
Mountain Railways of India
Mountain Railways of India is a UNESCO World Heritage collective designation for several historic narrow-gauge railway lines built in the rugged hill regions of India, renowned for their engineering ingenuity and scenic routes.
-
E.
Bala Lake Railway
Bala Lake Railway is a narrow-gauge heritage railway in Gwynedd, Wales, that runs along the southern shore of Llyn Tegid (Bala Lake), offering scenic tourist rides on historic trains.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: railwayAttraction Context triple: [Nilgiris district, railwayAttraction, Nilgiri Mountain Railway]
-
A.
hasRailroadAttraction
chosen
Indicates that one entity features or contains a railroad-related attraction, such as a railway exhibit, ride, or point of interest.
-
B.
railwayHeritageFeature
Indicates that something is a feature associated with railway heritage, such as historically significant railway structures, equipment, or related elements.
-
C.
Scenic RailwayStatus
Indicates that an entity’s status or condition is specifically related to a scenic railway (e.g., whether it is active, inactive, under construction, or otherwise classified).
-
D.
railwayFocus
Indicates that something is a primary subject, theme, or point of attention specifically in the context of railways or railway-related matters.
-
E.
rollerCoasterType
Indicates that one entity is classified as a specific type or category of roller coaster in relation to another entity.
- F. None of above.
Provenance (4 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_69d81c5eaa9c819083b1ff8689179565 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de25d9c7a48190ad8fb0ca676f4f7b |
completed | April 14, 2026, 11:32 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f7c722e72081909090b2d64000ebd9 |
completed | May 3, 2026, 10:07 p.m. |
| PD | Predicate disambiguation | batch_69dd464b1ab48190ae50bfc902bf6ef7 |
completed | April 13, 2026, 7:38 p.m. |
Created at: April 9, 2026, 10:15 p.m.