Triple

T5786572
Position Surface form Disambiguated ID Type / Status
Subject Tramlink E128281 entity
Predicate rollingStock P1305 FINISHED
Object Stadler Variobahn trams
Stadler Variobahn trams are a family of low-floor, modular light rail vehicles designed for urban tramway systems and produced by the Swiss manufacturer Stadler Rail.
 E551231 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: Stadler Variobahn trams | Statement: [Tramlink, rollingStock, Stadler Variobahn trams]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Stadler Variobahn trams
Context triple: [Tramlink, rollingStock, Stadler Variobahn trams]
  • A. 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.
  • B. Siemens–Duewag Supertram vehicles
    Siemens–Duewag Supertram vehicles are a fleet of modern light rail trams built by Siemens and Duewag, used to operate the Sheffield Supertram network in South Yorkshire, England.
  • C. Vossloh Citylink tram-train vehicles
    Vossloh Citylink tram-train vehicles are modern, dual-mode light rail units designed to operate seamlessly on both urban tram networks and mainline railway tracks.
  • D. SL79 tram
    The SL79 tram is a class of articulated light rail vehicles used for passenger service on the Oslo Tramway network in Norway.
  • E. Bombardier Cityrunner trams
    Bombardier Cityrunner trams are a family of low-floor, modern light rail vehicles designed for urban public transport systems in various cities worldwide.
  • 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: Stadler Variobahn trams
Triple: [Tramlink, rollingStock, Stadler Variobahn trams]
Generated description
Stadler Variobahn trams are a family of low-floor, modular light rail vehicles designed for urban tramway systems and produced by the Swiss manufacturer Stadler Rail.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Stadler Variobahn trams
Target entity description: Stadler Variobahn trams are a family of low-floor, modular light rail vehicles designed for urban tramway systems and produced by the Swiss manufacturer Stadler Rail.
  • A. 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.
  • B. Siemens–Duewag Supertram vehicles
    Siemens–Duewag Supertram vehicles are a fleet of modern light rail trams built by Siemens and Duewag, used to operate the Sheffield Supertram network in South Yorkshire, England.
  • C. Vossloh Citylink tram-train vehicles
    Vossloh Citylink tram-train vehicles are modern, dual-mode light rail units designed to operate seamlessly on both urban tram networks and mainline railway tracks.
  • D. SL79 tram
    The SL79 tram is a class of articulated light rail vehicles used for passenger service on the Oslo Tramway network in Norway.
  • E. Bombardier Cityrunner trams
    Bombardier Cityrunner trams are a family of low-floor, modern light rail vehicles designed for urban public transport systems in various cities worldwide.
  • 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_69c0084450048190bc647b649a05136b completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c02a1c29d48190af36cc855bb491dd completed March 22, 2026, 5:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0a17582f48190af88b000ced8b7b5 completed March 23, 2026, 2:12 a.m.
NEDg Description generation batch_69c0a234f0dc819098a889bd5ee87722 completed March 23, 2026, 2:15 a.m.
NED2 Entity disambiguation (via description) batch_69c0a2afcef88190a77c8089a1b85393 completed March 23, 2026, 2:17 a.m.
Created at: March 22, 2026, 3:51 p.m.