Triple

T4614901
Position Surface form Disambiguated ID Type / Status
Subject Indian Railways E100843 entity
Predicate subsidiary P258 FINISHED
Object Rail Vikas Nigam Limited
Rail Vikas Nigam Limited is an Indian government-owned company responsible for implementing and fast-tracking rail infrastructure and capacity enhancement projects across the Indian Railways network.
 E458450 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: Rail Vikas Nigam Limited | Statement: [Indian Railways, subsidiary, Rail Vikas Nigam Limited]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Rail Vikas Nigam Limited
Context triple: [Indian Railways, subsidiary, Rail Vikas Nigam Limited]
  • A. Indian Railways
    Indian Railways is India’s state-owned national railway system, operating one of the world’s largest rail networks for passenger and freight transport across the country.
  • B. Konkan Railway Corporation Limited
    Konkan Railway Corporation Limited is an Indian public sector company that builds, maintains, and operates the Konkan Railway line along India’s western coast.
  • C. Ministry of Railways (India)
    The Ministry of Railways (India) is the central government ministry responsible for the policy, planning, development, and regulation of Indian Railways, one of the world’s largest rail networks.
  • D. Gujarat Metro Rail Corporation Limited
    Gujarat Metro Rail Corporation Limited is a state-owned company responsible for developing, operating, and maintaining metro rail systems in Gujarat, India.
  • E. L&T Metro Rail (Hyderabad) Limited
    L&T Metro Rail (Hyderabad) Limited is a special purpose vehicle of Larsen & Toubro responsible for developing, operating, and maintaining the Hyderabad Metro rail project under a public-private partnership.
  • 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: Rail Vikas Nigam Limited
Triple: [Indian Railways, subsidiary, Rail Vikas Nigam Limited]
Generated description
Rail Vikas Nigam Limited is an Indian government-owned company responsible for implementing and fast-tracking rail infrastructure and capacity enhancement projects across the Indian Railways network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Rail Vikas Nigam Limited
Target entity description: Rail Vikas Nigam Limited is an Indian government-owned company responsible for implementing and fast-tracking rail infrastructure and capacity enhancement projects across the Indian Railways network.
  • A. Indian Railways
    Indian Railways is India’s state-owned national railway system, operating one of the world’s largest rail networks for passenger and freight transport across the country.
  • B. Konkan Railway Corporation Limited
    Konkan Railway Corporation Limited is an Indian public sector company that builds, maintains, and operates the Konkan Railway line along India’s western coast.
  • C. Ministry of Railways (India)
    The Ministry of Railways (India) is the central government ministry responsible for the policy, planning, development, and regulation of Indian Railways, one of the world’s largest rail networks.
  • D. Gujarat Metro Rail Corporation Limited
    Gujarat Metro Rail Corporation Limited is a state-owned company responsible for developing, operating, and maintaining metro rail systems in Gujarat, India.
  • E. L&T Metro Rail (Hyderabad) Limited
    L&T Metro Rail (Hyderabad) Limited is a special purpose vehicle of Larsen & Toubro responsible for developing, operating, and maintaining the Hyderabad Metro rail project under a public-private partnership.
  • F. None of above. chosen

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_69bd43cf363c819087fd5ab441b4a3f4 completed March 20, 2026, 12:55 p.m.
NER Named-entity recognition batch_69bd59c3d9ec8190a50ef03627dc351d completed March 20, 2026, 2:29 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdfa8da23881909ba4a70e9697f260 completed March 21, 2026, 1:55 a.m.
NEDg Description generation batch_69bdfc7b84108190af39c7780f702745 completed March 21, 2026, 2:03 a.m.
NED2 Entity disambiguation (via description) batch_69bdfd3856b48190a44f49da5fde38f6 completed March 21, 2026, 2:06 a.m.
Created at: March 20, 2026, 1:12 p.m.