Triple

T16659052
Position Surface form Disambiguated ID Type / Status
Subject Howrah–Bardhaman main line E404809 entity
Predicate historicalOperator P2834 FINISHED
Object East Indian Railway Company E637454 NE FINISHED

How this triple was built (2 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: East Indian Railway Company | Statement: [Howrah–Bardhaman main line, historicalOperator, East Indian Railway Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: East Indian Railway Company
Context triple: [Howrah–Bardhaman main line, historicalOperator, East Indian Railway Company]
  • A. East Indian Railway Company chosen
    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. 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.
  • C. 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.
  • D. 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.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d8838b5fbc81908c6575c132b82e80 completed April 10, 2026, 4:58 a.m.
NER Named-entity recognition batch_69e37bfcbb6881909c0419174dd017dc completed April 18, 2026, 12:41 p.m.
NED1 Entity disambiguation (via context triple) batch_6a008a30e55c8190a5047656b9873a0e completed May 10, 2026, 1:37 p.m.
Created at: April 10, 2026, 5:18 a.m.