Triple

T14047388
Position Surface form Disambiguated ID Type / Status
Subject Vandalur E337992 entity
Predicate nearestMajorRailHub P82238 FINISHED
Object Tambaram railway station E1075208 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: Tambaram railway station | Statement: [Vandalur, nearestMajorRailHub, Tambaram railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tambaram railway station
Context triple: [Vandalur, nearestMajorRailHub, Tambaram railway station]
  • A. Tambaram railway station chosen
    Tambaram railway station is a major suburban and long-distance rail hub in the Chennai metropolitan area, serving as a key terminus and transit point for commuters and regional travelers in Tamil Nadu, India.
  • B. Velachery railway station
    Velachery railway station is a major terminal on Chennai's Mass Rapid Transit System (MRTS) serving the Velachery neighborhood in south Chennai.
  • C. Chennai Egmore railway station
    Chennai Egmore railway station is one of the major railway terminals in Chennai, India, serving as a key hub for regional and long-distance trains, especially to southern Tamil Nadu.
  • D. Chepauk MRTS station
    Chepauk MRTS station is an elevated suburban railway station in Chennai, India, serving the Mass Rapid Transit System near the Chepauk area and its prominent institutions.
  • E. Kodambakkam railway station
    Kodambakkam railway station is a suburban rail stop in Chennai, India, serving the Kodambakkam neighborhood on the city’s Mass Rapid Transit and suburban railway network.
  • 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: nearestMajorRailHub
Context triple: [Vandalur, nearestMajorRailHub, Tambaram railway station]
  • A. nearestMajorTransportHub
    Indicates that one location is the closest significant transportation center (such as a major train station, airport, or bus terminal) to another location.
  • B. nearestMajorRailwayJunction chosen
    Indicates the closest significant railway junction in terms of distance from a given location or entity.
  • C. nearestRailwayTerminus
    Indicates that one location is the closest railway terminus to another specified place.
  • D. nearestMajorMetro
    Indicates the relationship where a given location is associated with the closest large metropolitan area to it.
  • E. nearestPassengerRailStation
    Indicates that one entity is the closest passenger rail station in distance to another entity.
  • 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_69d81c664e48819088cbd8f433aeffe5 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de3c88b5e48190b0f0149102c08992 completed April 14, 2026, 1:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69fcdefaabd0819098870522a6ce850c completed May 7, 2026, 6:50 p.m.
PD Predicate disambiguation batch_69de05ab36b48190920efb1869bdb1fe completed April 14, 2026, 9:15 a.m.
Created at: April 9, 2026, 10:20 p.m.