Triple

T7589806
Position Surface form Disambiguated ID Type / Status
Subject Nilgiri Mountain Railway E179705 entity
Predicate originalBuilder P3143 FINISHED
Object 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.
 E675761 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: Madras Railway Company | Statement: [Nilgiri Mountain Railway, originalBuilder, Madras Railway Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Madras Railway Company
Context triple: [Nilgiri Mountain Railway, originalBuilder, Madras Railway Company]
  • A. East Indian Railway Company
    The East Indian Railway Company was a major British colonial-era railway company that built and operated key rail lines in eastern and northern India during the 19th and early 20th centuries.
  • B. Bengal Nagpur Railway
    Bengal Nagpur Railway was a major British-era railway company in eastern and central India that played a key role in regional rail development before being absorbed into the post-independence Indian Railways system.
  • C. Bombay, Baroda and Central India Railway
    The Bombay, Baroda and Central India Railway was a major British-era Indian railway company that operated extensive routes in western and central India before being absorbed into the Western Railway zone after independence.
  • D. 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.
  • E. Central Railway
    Central Railway is one of the major zones of Indian Railways, headquartered in Mumbai and responsible for operating key rail routes and suburban services in western and central India.
  • 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: Madras Railway Company
Triple: [Nilgiri Mountain Railway, originalBuilder, Madras Railway Company]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Madras Railway Company
Target entity description: 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.
  • A. East Indian Railway Company
    The East Indian Railway Company was a major British colonial-era railway company that built and operated key rail lines in eastern and northern India during the 19th and early 20th centuries.
  • B. Bengal Nagpur Railway
    Bengal Nagpur Railway was a major British-era railway company in eastern and central India that played a key role in regional rail development before being absorbed into the post-independence Indian Railways system.
  • C. Bombay, Baroda and Central India Railway
    The Bombay, Baroda and Central India Railway was a major British-era Indian railway company that operated extensive routes in western and central India before being absorbed into the Western Railway zone after independence.
  • D. 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.
  • E. Central Railway
    Central Railway is one of the major zones of Indian Railways, headquartered in Mumbai and responsible for operating key rail routes and suburban services in western and central India.
  • 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_69c69f335248819093c1006f30513708 completed March 27, 2026, 3:16 p.m.
NER Named-entity recognition batch_69c6f9b615f481908b2fe7e8aaed81bc completed March 27, 2026, 9:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8618d29c4819083e78266af8f2daa completed March 28, 2026, 11:17 p.m.
NEDg Description generation batch_69c86211e4f88190b38bce6441e33b53 completed March 28, 2026, 11:19 p.m.
NED2 Entity disambiguation (via description) batch_69c862b8f3688190b0abc00458f70d7e completed March 28, 2026, 11:22 p.m.
Created at: March 27, 2026, 3:53 p.m.