Triple

T4201855
Position Surface form Disambiguated ID Type / Status
Subject Gosforth depot E86084 entity
Predicate hasTypeOfRollingStockServiced P1305 FINISHED
Object Tyne and Wear Metro new fleet (Stadler-built units)
The Tyne and Wear Metro new fleet (Stadler-built units) is a modern generation of electric multiple units designed by Stadler Rail to replace the original Metro trains with improved reliability, accessibility, and passenger comfort on the Tyne and Wear Metro network.
 E420770 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: Tyne and Wear Metro new fleet (Stadler-built units) | Statement: [Gosforth depot, hasTypeOfRollingStockServiced, Tyne and Wear Metro new fleet (Stadler-built units)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tyne and Wear Metro new fleet (Stadler-built units)
Context triple: [Gosforth depot, hasTypeOfRollingStockServiced, Tyne and Wear Metro new fleet (Stadler-built units)]
  • A. Siemens U2 LRVs
    Siemens U2 LRVs are a series of high-floor light rail vehicles built by Siemens for urban transit systems, widely used in early North American and European light rail networks.
  • B. Bombardier Flexity Freedom LRVs
    Bombardier Flexity Freedom LRVs are a class of modern low-floor light rail vehicles designed by Bombardier for urban transit systems in North America.
  • C. Tyne and Wear Metro
    Tyne and Wear Metro is a light rail rapid transit system serving Newcastle upon Tyne, Sunderland, and surrounding areas in North East England.
  • D. Siemens SD160 LRVs
    The Siemens SD160 LRVs are a series of modern, high-floor light rail vehicles widely used across North American transit systems for urban passenger service.
  • E. 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.
  • 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: Tyne and Wear Metro new fleet (Stadler-built units)
Triple: [Gosforth depot, hasTypeOfRollingStockServiced, Tyne and Wear Metro new fleet (Stadler-built units)]
Generated description
The Tyne and Wear Metro new fleet (Stadler-built units) is a modern generation of electric multiple units designed by Stadler Rail to replace the original Metro trains with improved reliability, accessibility, and passenger comfort on the Tyne and Wear Metro network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Tyne and Wear Metro new fleet (Stadler-built units)
Target entity description: The Tyne and Wear Metro new fleet (Stadler-built units) is a modern generation of electric multiple units designed by Stadler Rail to replace the original Metro trains with improved reliability, accessibility, and passenger comfort on the Tyne and Wear Metro network.
  • A. Siemens U2 LRVs
    Siemens U2 LRVs are a series of high-floor light rail vehicles built by Siemens for urban transit systems, widely used in early North American and European light rail networks.
  • B. Bombardier Flexity Freedom LRVs
    Bombardier Flexity Freedom LRVs are a class of modern low-floor light rail vehicles designed by Bombardier for urban transit systems in North America.
  • C. Tyne and Wear Metro
    Tyne and Wear Metro is a light rail rapid transit system serving Newcastle upon Tyne, Sunderland, and surrounding areas in North East England.
  • D. Siemens SD160 LRVs
    The Siemens SD160 LRVs are a series of modern, high-floor light rail vehicles widely used across North American transit systems for urban passenger service.
  • E. 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.
  • 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_69aed93b89f48190a31f6d57c760e42f completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69af0b2db368819080c1d652b4acfd0c completed March 9, 2026, 6:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69b58a173a78819094915f63c8411602 completed March 14, 2026, 4:17 p.m.
NEDg Description generation batch_69b58e1e7bc08190b75486c74953f609 completed March 14, 2026, 4:34 p.m.
NED2 Entity disambiguation (via description) batch_69b58e7a208481909056b6fba4597bf4 completed March 14, 2026, 4:36 p.m.
Created at: March 9, 2026, 3:49 p.m.