Triple

T1061570
Position Surface form Disambiguated ID Type / Status
Subject Geneva–Aéroport railway line E22917 entity
Predicate safetySystem P840 FINISHED
Object European Train Control System
The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe to enhance railway safety and efficiency.
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: European Train Control System | Statement: [Geneva–Aéroport railway line, safetySystem, European Train Control System]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: European Train Control System
Context triple: [Geneva–Aéroport railway line, safetySystem, European 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. AGC European Agreement on Main International Railway Lines
    The AGC European Agreement on Main International Railway Lines is a United Nations treaty that coordinates and standardizes the planning and development of an integrated network of major international railway routes across Europe.
  • C. 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.
  • D. Thalys
    Thalys is a high-speed international train service connecting major cities in France, Belgium, the Netherlands, and Germany.
  • E. Eurostar
    Eurostar is a high-speed international train service connecting the United Kingdom with mainland Europe via the Channel Tunnel, linking cities such as London, Paris, and Brussels.
  • 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: European Train Control System
Triple: [Geneva–Aéroport railway line, safetySystem, European Train Control System]
Generated description
The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe to enhance railway safety and efficiency.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: European Train Control System
Target entity description: The European Train Control System (ETCS) is a standardized, interoperable train signaling and control system used across Europe to enhance railway safety and efficiency.
  • A. 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.
  • B. AGC European Agreement on Main International Railway Lines
    The AGC European Agreement on Main International Railway Lines is a United Nations treaty that coordinates and standardizes the planning and development of an integrated network of major international railway routes across Europe.
  • C. 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.
  • D. InterCityExpress
    InterCityExpress is Germany’s high-speed train service operated by Deutsche Bahn, known for fast long-distance connections between major cities and neighboring countries.
  • E. Thalys
    Thalys is a high-speed international train service connecting major cities in France, Belgium, the Netherlands, and Germany.
  • 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_69a493dada0481909c43649f9843ea91 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b8f531f481909a40558811379992 completed March 1, 2026, 10:08 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac3bd553a08190a2014711bd1146bf completed March 7, 2026, 2:53 p.m.
NEDg Description generation batch_69ac3dd441fc8190ad462aa07e9c8c9b completed March 7, 2026, 3:01 p.m.
NED2 Entity disambiguation (via description) batch_69ac3e4747908190a878ac70bd81f5fc completed March 7, 2026, 3:03 p.m.
Created at: March 1, 2026, 7:42 p.m.