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.