Triple

T8238807
Position Surface form Disambiguated ID Type / Status
Subject Guangzhou–Zhuhai Intercity Railway E192477 entity
Predicate railwaySignalling P19148 FINISHED
Object 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.
 E720925 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: Chinese Train Control System | Statement: [Guangzhou–Zhuhai Intercity Railway, railwaySignalling, Chinese Train Control System]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chinese Train Control System
Context triple: [Guangzhou–Zhuhai Intercity Railway, railwaySignalling, Chinese Train Control System]
  • 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. European Train Control System
    The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe and in high-speed railways worldwide to enhance safety and efficiency.
  • 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 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.
  • 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.
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: Chinese Train Control System
Triple: [Guangzhou–Zhuhai Intercity Railway, railwaySignalling, Chinese Train Control System]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chinese Train Control System
Target entity description: 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.
  • 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. European Train Control System
    The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe and in high-speed railways worldwide to enhance safety and efficiency.
  • 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 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.
  • 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 (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_69ca82dc8f148190a2c75a98501a7b91 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb783a8cf48190bf85394fd3bd79e2 completed March 31, 2026, 7:31 a.m.
NED1 Entity disambiguation (via context triple) batch_69cd3504e6ac8190b4cb12c80a7e7fc0 completed April 1, 2026, 3:08 p.m.
NEDg Description generation batch_69cd37a47f3c81909491e9b0316c32f0 completed April 1, 2026, 3:20 p.m.
NED2 Entity disambiguation (via description) batch_69cd4ecc8d68819099932b1ecefc0d36 completed April 1, 2026, 4:58 p.m.
Created at: March 30, 2026, 5:47 p.m.