Triple

T8773808
Position Surface form Disambiguated ID Type / Status
Subject Visakhapatnam railway station E208527 entity
Predicate railwayDivision P1921 FINISHED
Object Waltair railway division
Waltair railway division is an administrative division of Indian Railways that manages and operates railway services in and around Visakhapatnam and parts of the surrounding region.
 E756266 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: Waltair railway division | Statement: [Visakhapatnam railway station, railwayDivision, Waltair railway division]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Waltair railway division
Context triple: [Visakhapatnam railway station, railwayDivision, Waltair railway division]
  • A. Katihar railway division
    Katihar railway division is an administrative division of Indian Railways under the Northeast Frontier Railway zone, overseeing rail operations and infrastructure in and around Katihar in eastern India.
  • B. Lumding railway division
    Lumding railway division is an administrative division of Indian Railways in the Northeast Frontier Railway zone, overseeing rail operations and infrastructure in parts of Assam and the surrounding northeastern region.
  • C. Gwalior Light Railway
    Gwalior Light Railway is a historic narrow-gauge railway network in central India, originally built to serve the princely state of Gwalior and noted for its extensive rural reach and heritage value.
  • D. Howrah railway division
    Howrah railway division is a major administrative division of Indian Railways under the Eastern Railway zone, overseeing railway operations and infrastructure centered around Howrah in West Bengal.
  • E. Bala Lake Railway
    Bala Lake Railway is a narrow-gauge heritage railway in Gwynedd, Wales, that runs along the southern shore of Llyn Tegid (Bala Lake), offering scenic tourist rides on historic trains.
  • 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: Waltair railway division
Triple: [Visakhapatnam railway station, railwayDivision, Waltair railway division]
Generated description
Waltair railway division is an administrative division of Indian Railways that manages and operates railway services in and around Visakhapatnam and parts of the surrounding region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Waltair railway division
Target entity description: Waltair railway division is an administrative division of Indian Railways that manages and operates railway services in and around Visakhapatnam and parts of the surrounding region.
  • A. Katihar railway division
    Katihar railway division is an administrative division of Indian Railways under the Northeast Frontier Railway zone, overseeing rail operations and infrastructure in and around Katihar in eastern India.
  • B. Lumding railway division
    Lumding railway division is an administrative division of Indian Railways in the Northeast Frontier Railway zone, overseeing rail operations and infrastructure in parts of Assam and the surrounding northeastern region.
  • C. Gwalior Light Railway
    Gwalior Light Railway is a historic narrow-gauge railway network in central India, originally built to serve the princely state of Gwalior and noted for its extensive rural reach and heritage value.
  • D. Howrah railway division
    Howrah railway division is a major administrative division of Indian Railways under the Eastern Railway zone, overseeing railway operations and infrastructure centered around Howrah in West Bengal.
  • E. Bala Lake Railway
    Bala Lake Railway is a narrow-gauge heritage railway in Gwynedd, Wales, that runs along the southern shore of Llyn Tegid (Bala Lake), offering scenic tourist rides on historic trains.
  • 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_69cf51c760b48190b2138cd2861b2c61 completed April 3, 2026, 5:36 a.m.
NEDg Description generation batch_69cf52f0886881909ceb9fbe54f84d11 completed April 3, 2026, 5:41 a.m.
NED2 Entity disambiguation (via description) batch_69cf53bc19fc81908f43c3fa29bae021 completed April 3, 2026, 5:44 a.m.
Created at: March 30, 2026, 6:41 p.m.