Triple

T8352001
Position Surface form Disambiguated ID Type / Status
Subject Howrah railway division E196583 entity
Predicate zoneHeadquarter P82236 FINISHED
Object Eastern Railway zone E196584 NE FINISHED

How this triple was built (3 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: Eastern Railway zone | Statement: [Howrah railway division, zoneHeadquarter, Eastern Railway zone]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Eastern Railway zone
Context triple: [Howrah railway division, zoneHeadquarter, Eastern Railway zone]
  • A. Eastern Railway zone chosen
    The Eastern Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Kolkata, that manages a major portion of rail operations in eastern India.
  • B. Northern Railway zone
    The Northern Railway zone is one of the largest and oldest zones of Indian Railways, overseeing extensive rail operations across North India from its headquarters in New Delhi.
  • C. Western Railway zone
    The Western Railway zone is one of the major zones of Indian Railways, overseeing rail operations across parts of western India including the states of Gujarat, Maharashtra, and Madhya Pradesh.
  • D. East Central Railway zone
    The East Central Railway zone is one of the 19 railway zones in India, headquartered at Hajipur in Bihar, responsible for operating and managing rail transport across parts of Bihar, Jharkhand, Uttar Pradesh, and Madhya Pradesh.
  • E. Central Railway zone
    Central Railway zone is one of the major zones of Indian Railways, headquartered in Mumbai, overseeing key rail operations across Maharashtra and neighboring regions.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: zoneHeadquarter
Context triple: [Howrah railway division, zoneHeadquarter, Eastern Railway zone]
  • A. administrativeHeadquarter
    Indicates the location that serves as the main administrative center or headquarters for an organization or governing body.
  • B. nearHeadquartersOf
    Indicates that one entity is located geographically close to the headquarters of another entity.
  • C. headquartersLocation
    Indicates the place where an organization’s main administrative center or principal office is located.
  • D. headquartersMunicipality
    Indicates the municipality in which an organization’s main administrative headquarters is located.
  • E. headquartersFor
    Indicates that a location serves as the main administrative center or base of operations for an organization or entity.
  • 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_69ca82f08b348190bfb7881944bbff6f completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb80460f048190aa298ddffde1047d completed March 31, 2026, 8:05 a.m.
NED1 Entity disambiguation (via context triple) batch_69ce395d11748190b7568be1d43d7859 completed April 2, 2026, 9:39 a.m.
PD Predicate disambiguation batch_69cb70c6d0ec8190acf273b0e007b51a completed March 31, 2026, 6:59 a.m.
PDg Predicate description generation batch_69cb76d823b08190a54fadb50660cda5 completed March 31, 2026, 7:25 a.m.
Created at: March 30, 2026, 5:59 p.m.