Triple

T5777051
Position Surface form Disambiguated ID Type / Status
Subject Tokyo Metro 7000 series E127468 entity
Predicate safetySystem P840 FINISHED
Object Automatic Train Stop
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.
E542881 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: Automatic Train Stop | Statement: [Tokyo Metro 7000 series, safetySystem, Automatic Train Stop]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Automatic Train Stop
Context triple: [Tokyo Metro 7000 series, safetySystem, Automatic Train Stop]
  • A. 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.
  • B. Automatic Train Supervision
    Automatic Train Supervision is a rail signaling subsystem that monitors, regulates, and optimizes train operations in real time, including scheduling, routing, and service regulation.
  • 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. 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.
  • E. Automatic Warning System
    The Automatic Warning System (AWS) is a British railway safety system that alerts train drivers to signal aspects and speed restrictions and automatically applies the brakes if necessary to prevent accidents.
  • 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: Automatic Train Stop
Triple: [Tokyo Metro 7000 series, safetySystem, Automatic Train Stop]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Automatic Train Stop
Target entity description: 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.
  • A. 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.
  • B. Automatic Train Supervision
    Automatic Train Supervision is a rail signaling subsystem that monitors, regulates, and optimizes train operations in real time, including scheduling, routing, and service regulation.
  • 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. 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.
  • E. Automatic Warning System
    The Automatic Warning System (AWS) is a British railway safety system that alerts train drivers to signal aspects and speed restrictions and automatically applies the brakes if necessary to prevent accidents.
  • 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_69c008361fa88190aefa4dc41b051e7f completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c029dfccdc8190bed937f493e42aed completed March 22, 2026, 5:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69c07e6fd260819090d5e3c877c8bd31 completed March 22, 2026, 11:42 p.m.
NEDg Description generation batch_69c08ba48a1c819090f276116a084a01 completed March 23, 2026, 12:39 a.m.
NED2 Entity disambiguation (via description) batch_69c08c094bd08190bb3d849bf1a80ad0 completed March 23, 2026, 12:40 a.m.
Created at: March 22, 2026, 3:50 p.m.