Triple

T21742249
Position Surface form Disambiguated ID Type / Status
Subject SJ Regional E536685 entity
Predicate safetySystem P840 FINISHED
Object European Train Control System (on equipped lines) — NE NERFINISHED

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 (on equipped lines) | Statement: [SJ Regional, safetySystem, European Train Control System (on equipped lines)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: European Train Control System (on equipped lines)
Context triple: [SJ Regional, safetySystem, European Train Control System (on equipped lines)]
  • 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. ETCS Level 3
    ETCS Level 3 is an advanced, moving-block train control standard that enables continuous train integrity supervision and higher line capacity within the European Train Control System.
  • C. 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.
  • 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. ETCS Level 1
    ETCS Level 1 is a standardized European train control and signaling system level that uses trackside equipment and intermittent data transmission to supervise train speed and movement authority.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e0c46df5448190b4322127ffc4c690 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69f01a7322348190b2145fa922c480ed completed April 28, 2026, 2:24 a.m.
Created at: April 16, 2026, 6:49 p.m.