Triple

T21710253
Position Surface form Disambiguated ID Type / Status
Subject Renfe Alvia E535883 entity
Predicate gaugeChangeTechnology P145049 FINISHED
Object Talgo variable gauge system
The Talgo variable gauge system is a railway technology that allows train wheelsets to automatically adjust between different track gauges while in motion, enabling seamless cross-border or mixed-gauge operation.
E1498563 NE FINISHED

How this triple was built (5 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: Talgo variable gauge system | Statement: [Renfe Alvia, gaugeChangeTechnology, Talgo variable gauge system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Talgo variable gauge system
Context triple: [Renfe Alvia, gaugeChangeTechnology, Talgo variable gauge system]
  • A. Talgo 350
    The Talgo 350 is a high-speed electric train developed by Spanish manufacturer Talgo, designed for very fast intercity services and widely used on premium high-speed rail lines.
  • B. Talgo engineering team
    The Talgo engineering team is the group of engineers and designers at Spanish manufacturer Talgo responsible for developing its high-speed train technologies and rolling stock.
  • C. Renfe Class Civia
    Renfe Class Civia is a family of electric multiple unit commuter trains operated by Spain’s national railway company for suburban and regional passenger services.
  • D. Renfe 447 series
    The Renfe 447 series is a class of electric multiple unit commuter trains widely used across Spain’s suburban rail networks.
  • E. Renfe 446 series
    The Renfe 446 series is a class of electric multiple unit commuter trains used extensively in Spain’s Cercanías suburban rail services.
  • 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: Talgo variable gauge system
Triple: [Renfe Alvia, gaugeChangeTechnology, Talgo variable gauge system]
Generated description
The Talgo variable gauge system is a railway technology that allows train wheelsets to automatically adjust between different track gauges while in motion, enabling seamless cross-border or mixed-gauge operation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Talgo variable gauge system
Target entity description: The Talgo variable gauge system is a railway technology that allows train wheelsets to automatically adjust between different track gauges while in motion, enabling seamless cross-border or mixed-gauge operation.
  • A. Talgo 350
    The Talgo 350 is a high-speed electric train developed by Spanish manufacturer Talgo, designed for very fast intercity services and widely used on premium high-speed rail lines.
  • B. Talgo engineering team
    The Talgo engineering team is the group of engineers and designers at Spanish manufacturer Talgo responsible for developing its high-speed train technologies and rolling stock.
  • C. Renfe Class Civia
    Renfe Class Civia is a family of electric multiple unit commuter trains operated by Spain’s national railway company for suburban and regional passenger services.
  • D. Renfe 447 series
    The Renfe 447 series is a class of electric multiple unit commuter trains widely used across Spain’s suburban rail networks.
  • E. Renfe 446 series
    The Renfe 446 series is a class of electric multiple unit commuter trains used extensively in Spain’s Cercanías suburban rail services.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: gaugeChangeTechnology
Context triple: [Renfe Alvia, gaugeChangeTechnology, Talgo variable gauge system]
  • A. gaugeType
    Indicates the specific kind or category of gauge associated with an entity or measurement.
  • B. gaugeCompatibleWith
    Indicates that one gauge can be properly used with, mounted to, or function correctly in conjunction with another specified component or system.
  • C. upgradeTechnology
    Indicates improving or replacing existing technology with a more advanced, efficient, or capable version.
  • D. gaugeConversionSection
    Indicates a section or segment where a change or transition between different measurement or track gauges occurs.
  • E. gaugeValue
    Indicates the measured or current reading associated with a particular gauge or measurement instrument.
  • F. None of above. chosen

Provenance (7 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_69e0c46b44c0819088ab883ebd44e0e8 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69efb5333c8481909d729fb3bc3c9bc5 completed April 27, 2026, 7:12 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a24afb170819082e8b5d06427140a completed May 17, 2026, 8:27 p.m.
NEDg Description generation batch_6a0a276da268819082c3e2551f05e020 completed May 17, 2026, 8:39 p.m.
NED2 Entity disambiguation (via description) batch_6a0a27d9bb248190b65da5cb50c332ec completed May 17, 2026, 8:40 p.m.
PD Predicate disambiguation batch_69e6969725bc81908e7ad19619ba2688 completed April 20, 2026, 9:11 p.m.
PDg Predicate description generation batch_69e69b4aa2b48190830107391e81571a completed April 20, 2026, 9:31 p.m.
Created at: April 16, 2026, 6:46 p.m.