Triple

T4060871
Position Surface form Disambiguated ID Type / Status
Subject Berlin U-Bahn line U7 E86206 entity
Predicate rollingStock P1305 FINISHED
Object BVG Class F
The BVG Class F is a series of large-profile electric multiple unit trains used on Berlin’s U-Bahn network, particularly on high-capacity lines like the U7.
E410417 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: BVG Class F | Statement: [Berlin U-Bahn line U7, rollingStock, BVG Class F]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: BVG Class F
Context triple: [Berlin U-Bahn line U7, rollingStock, BVG Class F]
  • A. Siemens EuroSprinter
    Siemens EuroSprinter is a family of high-performance electric locomotives developed by Siemens for freight and passenger rail services across Europe and beyond.
  • B. Siemens Vectron
    Siemens Vectron is a modular family of electric and diesel-electric locomotives designed for versatile passenger and freight operations across European rail networks.
  • C. DE30AC locomotive
    The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
  • D. GG1 electric locomotive
    The GG1 electric locomotive was a streamlined, high-speed electric locomotive class that became an iconic workhorse of American railroading, particularly in the Northeast corridor, during much of the 20th century.
  • E. BR Standard Class 5
    The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway 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: BVG Class F
Triple: [Berlin U-Bahn line U7, rollingStock, BVG Class F]
Generated description
The BVG Class F is a series of large-profile electric multiple unit trains used on Berlin’s U-Bahn network, particularly on high-capacity lines like the U7.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: BVG Class F
Target entity description: The BVG Class F is a series of large-profile electric multiple unit trains used on Berlin’s U-Bahn network, particularly on high-capacity lines like the U7.
  • A. Siemens EuroSprinter
    Siemens EuroSprinter is a family of high-performance electric locomotives developed by Siemens for freight and passenger rail services across Europe and beyond.
  • B. Siemens Vectron
    Siemens Vectron is a modular family of electric and diesel-electric locomotives designed for versatile passenger and freight operations across European rail networks.
  • C. DE30AC locomotive
    The DE30AC locomotive is a diesel-electric passenger locomotive built by EMD for the Long Island Rail Road, designed for push-pull commuter service with head-end power.
  • D. GG1 electric locomotive
    The GG1 electric locomotive was a streamlined, high-speed electric locomotive class that became an iconic workhorse of American railroading, particularly in the Northeast corridor, during much of the 20th century.
  • E. BR Standard Class 5
    The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway 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_69aed93c69208190a4efac0efe3cd69b completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aefbd4acb0819093bcffcd05ed8e6f completed March 9, 2026, 4:56 p.m.
NED1 Entity disambiguation (via context triple) batch_69b562a98c488190a7e77cd46ff998bc completed March 14, 2026, 1:29 p.m.
NEDg Description generation batch_69b5637e72948190989169b0a46916a8 completed March 14, 2026, 1:32 p.m.
NED2 Entity disambiguation (via description) batch_69b563fc4cb081908ba0f1a799338a8c completed March 14, 2026, 1:34 p.m.
Created at: March 9, 2026, 3:38 p.m.