Triple

T13036584
Position Surface form Disambiguated ID Type / Status
Subject Southern Railway zone E326576 entity
Predicate formedByMergerOf P77 FINISHED
Object South Indian Railway Company
The South Indian Railway Company was a major British-era railway company that operated extensive rail networks across southern India before being nationalized and absorbed into the post-independence Indian Railways system.
E1018625 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: South Indian Railway Company | Statement: [Southern Railway zone, formedByMergerOf, South Indian Railway Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: South Indian Railway Company
Context triple: [Southern Railway zone, formedByMergerOf, South Indian Railway Company]
  • A. Madras Railway Company
    The Madras Railway Company was a British-era railway company in colonial India that developed and operated key rail lines in southern India, including the early construction of the Nilgiri Mountain Railway.
  • B. Hyderabad State Railway
    Hyderabad State Railway was a regional railway system in the princely state of Hyderabad, established and operated under the patronage of the Nizam to connect and develop his dominion.
  • C. 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.
  • D. Scindia State Railway
    Scindia State Railway was a former princely-state-owned railway system in India that later became part of the nationalized network and contributed to the formation of the Central Railway zone.
  • E. Madras and Southern Mahratta Railway
    Madras and Southern Mahratta Railway was a major British-era railway company in southern India that operated extensive rail networks across the Madras Presidency and neighboring regions before being integrated into the post-independence Indian Railways system.
  • 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: South Indian Railway Company
Triple: [Southern Railway zone, formedByMergerOf, South Indian Railway Company]
Generated description
The South Indian Railway Company was a major British-era railway company that operated extensive rail networks across southern India before being nationalized and absorbed into the post-independence Indian Railways system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: South Indian Railway Company
Target entity description: The South Indian Railway Company was a major British-era railway company that operated extensive rail networks across southern India before being nationalized and absorbed into the post-independence Indian Railways system.
  • A. Madras Railway Company
    The Madras Railway Company was a British-era railway company in colonial India that developed and operated key rail lines in southern India, including the early construction of the Nilgiri Mountain Railway.
  • B. Hyderabad State Railway
    Hyderabad State Railway was a regional railway system in the princely state of Hyderabad, established and operated under the patronage of the Nizam to connect and develop his dominion.
  • C. 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.
  • D. Scindia State Railway
    Scindia State Railway was a former princely-state-owned railway system in India that later became part of the nationalized network and contributed to the formation of the Central Railway zone.
  • E. Madras and Southern Mahratta Railway chosen
    Madras and Southern Mahratta Railway was a major British-era railway company in southern India that operated extensive rail networks across the Madras Presidency and neighboring regions before being integrated into the post-independence Indian Railways system.
  • 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_69d8076cc45c81908123123f43e69266 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69d97f2a71a0819098bb6cf8a4b2208a completed April 10, 2026, 10:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6d5fbaea8819080ca249159d6c125 completed May 3, 2026, 4:58 a.m.
NEDg Description generation batch_69f6d943a80c81909bc39b9a9ef303bd completed May 3, 2026, 5:12 a.m.
NED2 Entity disambiguation (via description) batch_69f6da1e56388190b536831b2c6d493f completed May 3, 2026, 5:16 a.m.
Created at: April 9, 2026, 8:55 p.m.