Triple

T19056991
Position Surface form Disambiguated ID Type / Status
Subject Vande Bharat Express E466422 entity
Predicate safetyFeature P642 FINISHED
Object Kavach train protection system — NE NERFINISHED

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: Kavach train protection system | Statement: [Vande Bharat Express, safetyFeature, Kavach train protection system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kavach train protection system
Context triple: [Vande Bharat Express, safetyFeature, Kavach train protection system]
  • A. Tejas Express
    Tejas Express is a semi-high-speed, fully air-conditioned premium train service in India known for its modern onboard amenities and faster connectivity between major cities.
  • B. Vande Bharat Express
    Vande Bharat Express is a semi-high-speed, fully air-conditioned train service in India known for its modern design, onboard amenities, and faster intercity travel.
  • C. Train Protection & Warning System
    Train Protection & Warning System is a British railway safety system designed to automatically stop or slow trains to prevent collisions and signal passed at danger incidents.
  • D. Chinese Train Control System
    The Chinese Train Control System is a standardized, multi-level train control and signalling system used across China’s railways to ensure safe, efficient, and high-speed train operations.
  • E. Siemens Trainguard MT
    Siemens Trainguard MT is a communications-based train control (CBTC) signaling system developed by Siemens for fully automated and driverless metro and urban rail operations.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Kavach train protection system
Target entity description: Kavach train protection system is an indigenous Indian automatic train protection technology designed to prevent collisions and enhance operational safety on the railway network.
  • A. Tejas Express
    Tejas Express is a semi-high-speed, fully air-conditioned premium train service in India known for its modern onboard amenities and faster connectivity between major cities.
  • B. Vande Bharat Express
    Vande Bharat Express is a semi-high-speed, fully air-conditioned train service in India known for its modern design, onboard amenities, and faster intercity travel.
  • C. Train Protection & Warning System
    Train Protection & Warning System is a British railway safety system designed to automatically stop or slow trains to prevent collisions and signal passed at danger incidents.
  • D. Chinese Train Control System
    The Chinese Train Control System is a standardized, multi-level train control and signalling system used across China’s railways to ensure safe, efficient, and high-speed train operations.
  • E. Siemens Trainguard MT
    Siemens Trainguard MT is a communications-based train control (CBTC) signaling system developed by Siemens for fully automated and driverless metro and urban rail operations.
  • F. None of above. chosen

Provenance (2 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_69d8dd040fb881909af2a964f65ad208 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5dc067f788190b3b149dfee370435 completed April 20, 2026, 7:55 a.m.
Created at: April 10, 2026, 12:03 p.m.