Triple
T1752569
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Howrah |
E38476
|
entity |
| Predicate | railwayDivisionHeadquarters |
P22571
|
FINISHED |
| Object |
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.
|
E196583
|
NE FINISHED |
How this triple was built (5 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: Howrah railway division | Statement: [Howrah, railwayDivisionHeadquarters, Howrah railway division]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Howrah railway division Context triple: [Howrah, railwayDivisionHeadquarters, Howrah railway division]
-
A.
Eastern Railway
Eastern Railway is one of the major zones of Indian Railways, operating extensive rail services primarily across eastern India.
-
B.
Northeast Frontier Railway (partly)
Northeast Frontier Railway is a zone of Indian Railways responsible for rail operations across much of India’s northeastern region and parts of eastern states.
-
C.
Bolpur Shantiniketan railway station
Bolpur Shantiniketan railway station is a key rail hub in West Bengal, India, serving the town of Bolpur and the nearby cultural and educational center of Santiniketan.
-
D.
Bareilly Junction
Bareilly Junction is a major railway station in Uttar Pradesh, India, serving as a key transit hub connecting Bareilly to numerous regional and long-distance routes across the country.
-
E.
North Central Railway zone
The North Central Railway zone is one of the 19 railway zones of Indian Railways, headquartered at Prayagraj, and is a major rail network serving parts of Uttar Pradesh, Madhya Pradesh, Rajasthan, and Haryana.
- 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: Howrah railway division Triple: [Howrah, railwayDivisionHeadquarters, Howrah railway division]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Howrah railway division Target entity description: 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.
-
A.
Eastern Railway
Eastern Railway is one of the major zones of Indian Railways, operating extensive rail services primarily across eastern India.
-
B.
Northeast Frontier Railway (partly)
Northeast Frontier Railway is a zone of Indian Railways responsible for rail operations across much of India’s northeastern region and parts of eastern states.
-
C.
Bolpur Shantiniketan railway station
Bolpur Shantiniketan railway station is a key rail hub in West Bengal, India, serving the town of Bolpur and the nearby cultural and educational center of Santiniketan.
-
D.
Bareilly Junction
Bareilly Junction is a major railway station in Uttar Pradesh, India, serving as a key transit hub connecting Bareilly to numerous regional and long-distance routes across the country.
-
E.
North Central Railway zone
The North Central Railway zone is one of the 19 railway zones of Indian Railways, headquartered at Prayagraj, and is a major rail network serving parts of Uttar Pradesh, Madhya Pradesh, Rajasthan, and Haryana.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: railwayDivisionHeadquarters Context triple: [Howrah, railwayDivisionHeadquarters, Howrah railway division]
-
A.
railwayDivision
Indicates that one administrative railway division is responsible for, manages, or encompasses another railway unit, line, or area within a rail network.
-
B.
hasRailwayHeadquarters
chosen
Indicates that a railway organization or system has its main administrative or operational headquarters located at a specified place.
-
C.
railroadTerminusFor
Indicates that one location serves as the end point or final station of a particular railroad line for another location.
-
D.
railwayStationFor
Indicates a relationship where a railway station serves, is designated for, or primarily associated with a particular place, line, or service.
-
E.
hasRailwayStation
Indicates that a place or location is served by, or contains, a railway station.
- F. None of above.
Provenance (6 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_69a8862bdb2081908aefe831c8aa8017 |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69aba6a63f588190b53b39c6b97d74f4 |
completed | March 7, 2026, 4:16 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ada0e625c48190a0fbda31010bdc5f |
completed | March 8, 2026, 4:16 p.m. |
| NEDg | Description generation | batch_69ada1e13d408190b393c00c331125a2 |
completed | March 8, 2026, 4:20 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ada292a34c8190a566c2909342ab27 |
completed | March 8, 2026, 4:23 p.m. |
| PD | Predicate disambiguation | batch_69aa61c7ef4c8190abec87c96a787d82 |
completed | March 6, 2026, 5:10 a.m. |
Created at: March 4, 2026, 7:31 p.m.