Triple

T9269979
Position Surface form Disambiguated ID Type / Status
Subject ETCS Level 2 E222799 entity
Predicate partOf P40 FINISHED
Object European Train Control System E222798 NE FINISHED

How this triple was built (2 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: [ETCS Level 2, partOf, European Train Control System]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: European Train Control System
Context triple: [ETCS Level 2, partOf, European Train Control System]
  • A. European Train Control System chosen
    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.
  • B. 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.
  • C. 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.
  • D. ETCS Level 2
    ETCS Level 2 is an advanced European train control and signalling standard that enables continuous, cab-based train supervision and high-speed, high-capacity railway operations.
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

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_69ca841ffe208190aa7bcffbef2f8379 completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd078525308190abfb883123742d3f completed April 1, 2026, 11:54 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0b1ecfadc81909adf95fbbc77c389 completed April 4, 2026, 6:38 a.m.
Created at: March 30, 2026, 7:33 p.m.