Triple

T8304154
Position Surface form Disambiguated ID Type / Status
Subject Line U E194418 entity
Predicate rollingStock P1305 FINISHED
Object SNCF Z 20500
The SNCF Z 20500 is a class of double-deck electric multiple unit trains used for Paris suburban and regional commuter services.
 E729305 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: SNCF Z 20500 | Statement: [Line U, rollingStock, SNCF Z 20500]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: SNCF Z 20500
Context triple: [Line U, rollingStock, SNCF Z 20500]
  • A. SNCF Z 8800
    The SNCF Z 8800 is a class of French dual-voltage electric multiple units used primarily for suburban and regional commuter services around Paris.
  • B. SNCF TER
    SNCF TER is the regional rail service of France’s national railway company, providing local passenger train connections across various French regions.
  • C. TGV Sud-Est trainset
    The TGV Sud-Est trainset is the original high-speed electric multiple unit used on France’s pioneering TGV services, known for inaugurating high-speed rail in the country in the early 1980s.
  • D. TGV Réseau trainset
    The TGV Réseau trainset is a high-speed electric multiple unit used by the French national railway for long-distance services on the TGV network.
  • E. SNCF Voyageurs
    SNCF Voyageurs is the passenger rail operating division of France’s national railway company, responsible for running high-speed, regional, and commuter train 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: SNCF Z 20500
Triple: [Line U, rollingStock, SNCF Z 20500]
Generated description
The SNCF Z 20500 is a class of double-deck electric multiple unit trains used for Paris suburban and regional commuter services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: SNCF Z 20500
Target entity description: The SNCF Z 20500 is a class of double-deck electric multiple unit trains used for Paris suburban and regional commuter services.
  • A. SNCF Z 8800
    The SNCF Z 8800 is a class of French dual-voltage electric multiple units used primarily for suburban and regional commuter services around Paris.
  • B. SNCF TER
    SNCF TER is the regional rail service of France’s national railway company, providing local passenger train connections across various French regions.
  • C. TGV Sud-Est trainset
    The TGV Sud-Est trainset is the original high-speed electric multiple unit used on France’s pioneering TGV services, known for inaugurating high-speed rail in the country in the early 1980s.
  • D. TGV Réseau trainset
    The TGV Réseau trainset is a high-speed electric multiple unit used by the French national railway for long-distance services on the TGV network.
  • E. SNCF Voyageurs
    SNCF Voyageurs is the passenger rail operating division of France’s national railway company, responsible for running high-speed, regional, and commuter train 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_69ca82e613e88190bf8139669bbd0d53 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb7e8b9f6081909100d1da8a078616 completed March 31, 2026, 7:58 a.m.
NED1 Entity disambiguation (via context triple) batch_69cde772559c819080f411802bbcfef1 completed April 2, 2026, 3:50 a.m.
NEDg Description generation batch_69cdeb1fa7308190810b1fcc2184374a completed April 2, 2026, 4:05 a.m.
NED2 Entity disambiguation (via description) batch_69cdec3081d88190ad0699f9072d3fc7 completed April 2, 2026, 4:10 a.m.
Created at: March 30, 2026, 5:53 p.m.