Triple

T4733172
Position Surface form Disambiguated ID Type / Status
Subject Kintetsu Namba Line E105058 entity
Predicate safetySystem P840 FINISHED
Object ATS (Automatic Train Stop)
ATS (Automatic Train Stop) is a railway safety system that automatically applies a train’s brakes to prevent accidents such as passing signals at danger or exceeding speed limits.
E27668 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: ATS (Automatic Train Stop) | Statement: [Kintetsu Namba Line, safetySystem, ATS (Automatic Train Stop)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: ATS (Automatic Train Stop)
Context triple: [Kintetsu Namba Line, safetySystem, ATS (Automatic Train Stop)]
  • A. 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.
  • B. 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.
  • C. 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.
  • D. 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.
  • E. 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.
  • 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: ATS (Automatic Train Stop)
Triple: [Kintetsu Namba Line, safetySystem, ATS (Automatic Train Stop)]
Generated description
ATS (Automatic Train Stop) is a railway safety system that automatically applies a train’s brakes to prevent accidents such as passing signals at danger or exceeding speed limits.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: ATS (Automatic Train Stop)
Target entity description: ATS (Automatic Train Stop) is a railway safety system that automatically applies a train’s brakes to prevent accidents such as passing signals at danger or exceeding speed limits.
  • A. 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.
  • B. 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.
  • C. Automatic Train Control chosen
    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.
  • D. 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.
  • E. 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.
  • F. None of above.

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_69bd43ee52048190b81a4f066534ffb3 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6466354481908595f5bb56025cdb completed March 20, 2026, 3:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69be10acf7488190946b31f95114d459 completed March 21, 2026, 3:29 a.m.
NEDg Description generation batch_69be1502bbb4819094c27231dc6a9762 completed March 21, 2026, 3:48 a.m.
NED2 Entity disambiguation (via description) batch_69be15ba6dac8190b37130ba0a9209c3 completed March 21, 2026, 3:51 a.m.
Created at: March 20, 2026, 1:19 p.m.