Triple
T7015403
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Darjeeling Himalayan Railway |
E162687
|
entity |
| Predicate | originalBuilder |
P3143
|
FINISHED |
| Object |
Darjeeling Steam Tramway Company
The Darjeeling Steam Tramway Company was the original company responsible for constructing the narrow-gauge mountain railway that became the famed Darjeeling Himalayan Railway in India.
|
E162687
|
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: Darjeeling Steam Tramway Company | Statement: [Darjeeling Himalayan Railway, originalBuilder, Darjeeling Steam Tramway Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Darjeeling Steam Tramway Company Context triple: [Darjeeling Himalayan Railway, originalBuilder, Darjeeling Steam Tramway Company]
-
A.
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."
-
B.
Nilgiri Mountain Railway
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.
-
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.
Howrah railway division
Howrah railway division is a major administrative division of Indian Railways under the Eastern Railway zone, overseeing railway operations and infrastructure centered around Howrah in West Bengal.
-
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. 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: Darjeeling Steam Tramway Company Triple: [Darjeeling Himalayan Railway, originalBuilder, Darjeeling Steam Tramway Company]
Generated description
The Darjeeling Steam Tramway Company was the original company responsible for constructing the narrow-gauge mountain railway that became the famed Darjeeling Himalayan Railway in India.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Darjeeling Steam Tramway Company Target entity description: The Darjeeling Steam Tramway Company was the original company responsible for constructing the narrow-gauge mountain railway that became the famed Darjeeling Himalayan Railway in India.
-
A.
Darjeeling Himalayan Railway
chosen
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."
-
B.
Nilgiri Mountain Railway
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.
-
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.
Howrah railway division
Howrah railway division is a major administrative division of Indian Railways under the Eastern Railway zone, overseeing railway operations and infrastructure centered around Howrah in West Bengal.
-
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.
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_69c6885a127c8190867b059bdccf13ff |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6e1d43e948190843f1cef3ce2004e |
completed | March 27, 2026, 8 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c76a53e96081909dfe21a80b20f80d |
completed | March 28, 2026, 5:42 a.m. |
| NEDg | Description generation | batch_69c76b5301748190b0780ae20504f22c |
completed | March 28, 2026, 5:46 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c76c028448819099f05a39443a8789 |
completed | March 28, 2026, 5:49 a.m. |
Created at: March 27, 2026, 2:34 p.m.