Triple

T20489613
Position Surface form Disambiguated ID Type / Status
Subject Keikyū Main Line E502702 entity
Predicate hasTrainProtectionSystem P90154 FINISHED
Object ATS (Automatic Train Stop) 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: ATS (Automatic Train Stop) | Statement: [Keikyū Main Line, hasTrainProtectionSystem, ATS (Automatic Train Stop)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: ATS (Automatic Train Stop)
Context triple: [Keikyū Main Line, hasTrainProtectionSystem, ATS (Automatic Train Stop)]
  • A. Automatic Train Operation (ATO)
    Automatic Train Operation (ATO) is a railway control system that automates key driving functions such as acceleration, speed regulation, and braking to improve safety, efficiency, and consistency of train operations.
  • B. Positive Train Control
    Positive Train Control is an advanced, federally mandated train safety technology designed to automatically prevent collisions, overspeed derailments, and other dangerous train movements.
  • 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. Automatic Train Control
    Automatic Train Control is a railway safety and control system that automates train operations such as speed regulation and braking to prevent collisions and ensure safe, efficient train movement.
  • E. Automatic Train Stop chosen
    Automatic Train Stop is a railway safety system that automatically halts a train if it passes a signal at danger or exceeds certain operational limits, helping prevent collisions and signal overruns.
  • 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: hasTrainProtectionSystem
Context triple: [Keikyū Main Line, hasTrainProtectionSystem, ATS (Automatic Train Stop)]
  • A. trainProtection chosen
    Indicates that one entity provides safety measures or defensive mechanisms for a train during its operation.
  • B. hasAutomaticTrainControlCompatibility
    Indicates that an entity is compatible with, or supports integration with, an automatic train control (ATC) system.
  • C. hasIntruderDetectionSystem
    Indicates that an entity is equipped with a system designed to detect unauthorized or intruding entities.
  • D. hasAutomaticTrainControl
    Indicates that an entity is equipped with or uses an automatic train control system for managing train operations.
  • E. hasPassengerInformationSystem
    Indicates that an entity is equipped with a system that provides information to passengers, such as schedules, announcements, or travel updates.
  • F. None of above.

Provenance (3 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_69e0b4b0373881909dd3e9387f82eab4 completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e69b5d93ec81908259696359090b35 completed April 20, 2026, 9:32 p.m.
PD Predicate disambiguation batch_69e59fcdf6e08190a604204615dc56e6 completed April 20, 2026, 3:38 a.m.
Created at: April 16, 2026, 11:34 a.m.