Triple

T14082265
Position Surface form Disambiguated ID Type / Status
Subject Chennai Egmore railway station E338895 entity
Predicate isMajorTerminalOnRailwayNetwork P111734 FINISHED
Object Southern Railway zone E326576 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: Southern Railway zone | Statement: [Chennai Egmore railway station, isMajorTerminalOnRailwayNetwork, Southern Railway zone]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Southern Railway zone
Context triple: [Chennai Egmore railway station, isMajorTerminalOnRailwayNetwork, Southern Railway zone]
  • A. Southern Railway zone chosen
    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.
  • B. South Western Railway zone
    South Western Railway zone is a major railway administrative division of Indian Railways responsible for managing and operating train services and infrastructure primarily across the state of Karnataka and parts of neighboring regions.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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: isMajorTerminalOnRailwayNetwork
Context triple: [Chennai Egmore railway station, isMajorTerminalOnRailwayNetwork, Southern Railway zone]
  • A. isTerminalForSomeTrains
    Indicates that a station or stop serves as the final destination (terminus) for at least one train route.
  • B. isMajorStationOn
    Indicates that a station serves as a primary or significant stop on a particular route or line.
  • C. connectsToRailwayNetwork
    Indicates that one entity is physically or functionally linked to a railway network, allowing access or transfer between them.
  • D. isRailwayStationInNetwork chosen
    Indicates that a railway station belongs to, and is served as part of, a particular railway network.
  • E. isMajorTransitPointFor
    Indicates that a location serves as a primary hub or key node for the movement or transfer of people, goods, or vehicles within a transportation network.
  • F. None of above.

Provenance (4 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_69d81c687b0c819087fd9ed4198403f8 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de5c5f759c81909bfd60ab35b0937b completed April 14, 2026, 3:25 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd949b9fc481908c7717c412e05fac completed May 8, 2026, 7:45 a.m.
PD Predicate disambiguation batch_69de05b0e6c88190a819eeba0028981f completed April 14, 2026, 9:15 a.m.
Created at: April 9, 2026, 10:21 p.m.