Triple

T2280462
Position Surface form Disambiguated ID Type / Status
Subject Barcelona Metro E51267 entity
Predicate hasRollingStockType P1305 FINISHED
Object TMB 4000 series
The TMB 4000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
 E254935 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: TMB 4000 series | Statement: [Barcelona Metro, hasRollingStockType, TMB 4000 series]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: TMB 4000 series
Context triple: [Barcelona Metro, hasRollingStockType, TMB 4000 series]
  • A. TMB 3000 series
    The TMB 3000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
  • B. TMB 2000 series
    The TMB 2000 series is a class of electric multiple unit trains used on the Barcelona Metro, designed for high-capacity urban rapid transit service.
  • C. TMB
    TMB is the commonly used abbreviation for the Technical Management Board, a governing body that oversees and coordinates technical and standardization activities within its organization.
  • D. Cobas
    Cobas is Roche's line of automated clinical laboratory analyzers and diagnostic systems widely used for blood testing and other in vitro diagnostics.
  • E. Turbostar
    Turbostar is a family of modern British diesel multiple-unit trains widely used for regional and commuter services across the UK rail network.
  • 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: TMB 4000 series
Triple: [Barcelona Metro, hasRollingStockType, TMB 4000 series]
Generated description
The TMB 4000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: TMB 4000 series
Target entity description: The TMB 4000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
  • A. TMB 3000 series
    The TMB 3000 series is a class of electric multiple unit trains used on the Barcelona Metro system for passenger service.
  • B. TMB 2000 series
    The TMB 2000 series is a class of electric multiple unit trains used on the Barcelona Metro, designed for high-capacity urban rapid transit service.
  • C. TMB
    TMB is the commonly used abbreviation for the Technical Management Board, a governing body that oversees and coordinates technical and standardization activities within its organization.
  • D. Cobas
    Cobas is Roche's line of automated clinical laboratory analyzers and diagnostic systems widely used for blood testing and other in vitro diagnostics.
  • E. Turbostar
    Turbostar is a family of modern British diesel multiple-unit trains widely used for regional and commuter services across the UK rail network.
  • 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_69a88b08e4308190bdac9aebcca1c91a completed March 4, 2026, 7:42 p.m.
NER Named-entity recognition batch_69abc21ac3d48190abef254e1c3f45e8 completed March 7, 2026, 6:13 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae894cbb788190826b27cefb856651 completed March 9, 2026, 8:48 a.m.
NEDg Description generation batch_69ae8a98a4108190995ef759d2c4de85 completed March 9, 2026, 8:53 a.m.
NED2 Entity disambiguation (via description) batch_69ae8af889b48190b39ae193869a3aad completed March 9, 2026, 8:55 a.m.
Created at: March 4, 2026, 7:48 p.m.