Triple

T23001138
Position Surface form Disambiguated ID Type / Status
Subject CRRC Qingdao Sifang E572634 entity
Predicate notableWork P4 FINISHED
Object Buenos Aires RER / suburban EMUs (CSR era contracts) — NE NERFINISHED

How this triple was built (3 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: Buenos Aires RER / suburban EMUs (CSR era contracts) | Statement: [CRRC Qingdao Sifang, notableWork, Buenos Aires RER / suburban EMUs (CSR era contracts)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Buenos Aires RER / suburban EMUs (CSR era contracts)
Context triple: [CRRC Qingdao Sifang, notableWork, Buenos Aires RER / suburban EMUs (CSR era contracts)]
  • A. Buenos Aires commuter rail network
    The Buenos Aires commuter rail network is an extensive suburban railway system that connects the Argentine capital with its surrounding metropolitan area, serving as a major backbone of daily passenger transport.
  • B. TBA (Trenes de Buenos Aires)
    TBA (Trenes de Buenos Aires) was a private Argentine railway company that operated several commuter rail services in the Buenos Aires metropolitan area until its concession was revoked in the early 2010s.
  • C. Urquiza Line suburban rail services
    Urquiza Line suburban rail services are commuter train operations in Buenos Aires that connect the city with its northwestern suburbs along the General Urquiza railway corridor.
  • D. Metrobús Buenos Aires
    Metrobús Buenos Aires is a bus rapid transit (BRT) system in Buenos Aires that uses dedicated lanes and priority measures to improve the speed and reliability of urban bus services.
  • E. Belgrano Sur Line (Buenos Aires commuter rail)
    The Belgrano Sur Line is a suburban commuter rail service in the Buenos Aires metropolitan area that connects the city with several southwestern districts and outlying communities.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Buenos Aires RER / suburban EMUs (CSR era contracts)
Target entity description: Buenos Aires RER / suburban EMUs (CSR era contracts) are a fleet of modern electric multiple-unit commuter trains built by CRRC Qingdao Sifang to upgrade and expand Buenos Aires’ suburban rail network.
  • A. Buenos Aires commuter rail network
    The Buenos Aires commuter rail network is an extensive suburban railway system that connects the Argentine capital with its surrounding metropolitan area, serving as a major backbone of daily passenger transport.
  • B. TBA (Trenes de Buenos Aires)
    TBA (Trenes de Buenos Aires) was a private Argentine railway company that operated several commuter rail services in the Buenos Aires metropolitan area until its concession was revoked in the early 2010s.
  • C. Urquiza Line suburban rail services
    Urquiza Line suburban rail services are commuter train operations in Buenos Aires that connect the city with its northwestern suburbs along the General Urquiza railway corridor.
  • D. Metrobús Buenos Aires
    Metrobús Buenos Aires is a bus rapid transit (BRT) system in Buenos Aires that uses dedicated lanes and priority measures to improve the speed and reliability of urban bus services.
  • E. Belgrano Sur Line (Buenos Aires commuter rail)
    The Belgrano Sur Line is a suburban commuter rail service in the Buenos Aires metropolitan area that connects the city with several southwestern districts and outlying communities.
  • F. None of above. chosen

Provenance (2 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_69e245b6a3ac81908087599eefe3e365 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f18352bcf48190bd474eff69b3465b completed April 29, 2026, 4:04 a.m.
Created at: April 17, 2026, 3:50 p.m.