Triple

T8773806
Position Surface form Disambiguated ID Type / Status
Subject Visakhapatnam railway station E208527 entity
Predicate operatedBy P86 FINISHED
Object East Coast Railway zone
The East Coast Railway zone is a major administrative division of Indian Railways responsible for managing rail operations across parts of Odisha, Andhra Pradesh, and Chhattisgarh along India’s eastern coast.
 E760598 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: East Coast Railway zone | Statement: [Visakhapatnam railway station, operatedBy, East Coast Railway zone]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: East Coast Railway zone
Context triple: [Visakhapatnam railway station, operatedBy, East Coast Railway zone]
  • A. Eastern Railway zone
    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. 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.
  • C. North Eastern Railway zone
    The North Eastern Railway zone is a major administrative division of Indian Railways responsible for operating and managing rail services across parts of northern and eastern Uttar Pradesh and neighboring regions.
  • D. South Eastern Railway zone
    The South Eastern Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Garden Reach, Kolkata, and serving parts of West Bengal, Jharkhand, and Odisha.
  • E. Southern Railway zone
    The Southern Railway zone is one of the major zones of Indian Railways, overseeing extensive rail operations across southern India including key hubs like Tiruchirappalli.
  • 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: East Coast Railway zone
Triple: [Visakhapatnam railway station, operatedBy, East Coast Railway zone]
Generated description
The East Coast Railway zone is a major administrative division of Indian Railways responsible for managing rail operations across parts of Odisha, Andhra Pradesh, and Chhattisgarh along India’s eastern coast.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: East Coast Railway zone
Target entity description: The East Coast Railway zone is a major administrative division of Indian Railways responsible for managing rail operations across parts of Odisha, Andhra Pradesh, and Chhattisgarh along India’s eastern coast.
  • A. Eastern Railway zone
    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. 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.
  • C. North Eastern Railway zone
    The North Eastern Railway zone is a major administrative division of Indian Railways responsible for operating and managing rail services across parts of northern and eastern Uttar Pradesh and neighboring regions.
  • D. South Eastern Railway zone
    The South Eastern Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Garden Reach, Kolkata, and serving parts of West Bengal, Jharkhand, and Odisha.
  • E. Southern Railway zone
    The Southern Railway zone is one of the major zones of Indian Railways, overseeing extensive rail operations across southern India including key hubs like Tiruchirappalli.
  • 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_69ca835edb4481909b4aafb616dc5eb7 completed March 30, 2026, 2:06 p.m.
NER Named-entity recognition batch_69cc5f2ef3288190988bd69e8a02e741 completed March 31, 2026, 11:56 p.m.
NED1 Entity disambiguation (via context triple) batch_69cf88f4d35c81908de1fd713a5b2008 completed April 3, 2026, 9:31 a.m.
NEDg Description generation batch_69cf8a8c87dc81909d5c0d769341b17c completed April 3, 2026, 9:38 a.m.
NED2 Entity disambiguation (via description) batch_69cf8b79a0b48190a29491f5f8f81217 completed April 3, 2026, 9:42 a.m.
Created at: March 30, 2026, 6:41 p.m.