Triple

T11737555
Position Surface form Disambiguated ID Type / Status
Subject U2 (Vienna U-Bahn) E279068 entity
Predicate usesRollingStock P5426 FINISHED
Object Type T (Vienna U-Bahn rolling stock)
Type T is a class of electric multiple unit trains specifically built for and operated on Vienna’s U-Bahn system.
 E944224 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: Type T (Vienna U-Bahn rolling stock) | Statement: [U2 (Vienna U-Bahn), usesRollingStock, Type T (Vienna U-Bahn rolling stock)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Type T (Vienna U-Bahn rolling stock)
Context triple: [U2 (Vienna U-Bahn), usesRollingStock, Type T (Vienna U-Bahn rolling stock)]
  • A. Vienna U-Bahn network
    The Vienna U-Bahn network is the rapid transit system serving Austria’s capital, consisting of multiple underground lines that form the backbone of public transportation in Vienna.
  • B. Vienna tramway network
    The Vienna tramway network is an extensive and historic urban light rail system in Austria’s capital, forming a core part of the city’s public transportation.
  • C. Stadler Tango trams
    Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
  • D. Vienna U-Bahn at Wien Mitte
    Vienna U-Bahn at Wien Mitte is a major underground transit hub in central Vienna that serves multiple metro lines and provides key connections to regional and airport rail services.
  • E. Vienna S-Bahn
    The Vienna S-Bahn is a suburban rail network serving Vienna and its surrounding regions, providing frequent commuter connections that integrate with the city’s public transport system.
  • 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: Type T (Vienna U-Bahn rolling stock)
Triple: [U2 (Vienna U-Bahn), usesRollingStock, Type T (Vienna U-Bahn rolling stock)]
Generated description
Type T is a class of electric multiple unit trains specifically built for and operated on Vienna’s U-Bahn system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Type T (Vienna U-Bahn rolling stock)
Target entity description: Type T is a class of electric multiple unit trains specifically built for and operated on Vienna’s U-Bahn system.
  • A. Vienna U-Bahn network
    The Vienna U-Bahn network is the rapid transit system serving Austria’s capital, consisting of multiple underground lines that form the backbone of public transportation in Vienna.
  • B. Vienna tramway network
    The Vienna tramway network is an extensive and historic urban light rail system in Austria’s capital, forming a core part of the city’s public transportation.
  • C. Stadler Tango trams
    Stadler Tango trams are modern, low-floor light rail vehicles built by Stadler Rail, commonly used in European cities for high-capacity, urban public transport services.
  • D. Vienna U-Bahn at Wien Mitte
    Vienna U-Bahn at Wien Mitte is a major underground transit hub in central Vienna that serves multiple metro lines and provides key connections to regional and airport rail services.
  • E. Vienna S-Bahn
    The Vienna S-Bahn is a suburban rail network serving Vienna and its surrounding regions, providing frequent commuter connections that integrate with the city’s public transport system.
  • 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_69d6aaffec6881908bead509e8621742 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8a4ef1c4881909ad36dc27b1fe193 completed April 10, 2026, 7:21 a.m.
NED1 Entity disambiguation (via context triple) batch_69f019c339cc81909967ecfa234e4ab8 completed April 28, 2026, 2:21 a.m.
NEDg Description generation batch_69f01d7ab930819095eaae226ab55b80 completed April 28, 2026, 2:37 a.m.
NED2 Entity disambiguation (via description) batch_69f043ddbfe481908e0c439dbd3e944f completed April 28, 2026, 5:21 a.m.
Created at: April 8, 2026, 9:41 p.m.