Triple

T6493797
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 168 E148104 entity
Predicate operator P179 FINISHED
Object Mainline Trains (past)
Mainline Trains was a former British train operating company that provided passenger rail services in the United Kingdom before the consolidation and rebranding of regional franchises.
 E595519 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: Mainline Trains (past) | Statement: [British Rail Class 168, operator, Mainline Trains (past)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mainline Trains (past)
Context triple: [British Rail Class 168, operator, Mainline Trains (past)]
  • A. M1 trains
    M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
  • B. Central Trains (former)
    Central Trains was a former British train operating company that provided regional and local passenger rail services across the Midlands and surrounding areas in England.
  • C. G1 trains
    G1 trains are a modern fleet of electric multiple-unit subway trains operating on the Nuremberg U-Bahn system in Germany.
  • D. MF 67 trains
    MF 67 trains are a long-serving class of steel-wheeled electric multiple units used extensively across the Paris Métro network.
  • E. First Rail
    First Rail is the rail division of FirstGroup, operating passenger train services and related rail transport operations in the United Kingdom.
  • 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: Mainline Trains (past)
Triple: [British Rail Class 168, operator, Mainline Trains (past)]
Generated description
Mainline Trains was a former British train operating company that provided passenger rail services in the United Kingdom before the consolidation and rebranding of regional franchises.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mainline Trains (past)
Target entity description: Mainline Trains was a former British train operating company that provided passenger rail services in the United Kingdom before the consolidation and rebranding of regional franchises.
  • A. M1 trains
    M1 trains are a fleet of modern electric metro trains used on the Prague Metro system, known for their high capacity and air-conditioned, articulated design.
  • B. Central Trains (former)
    Central Trains was a former British train operating company that provided regional and local passenger rail services across the Midlands and surrounding areas in England.
  • C. G1 trains
    G1 trains are a modern fleet of electric multiple-unit subway trains operating on the Nuremberg U-Bahn system in Germany.
  • D. MF 67 trains
    MF 67 trains are a long-serving class of steel-wheeled electric multiple units used extensively across the Paris Métro network.
  • E. First Rail
    First Rail is the rail division of FirstGroup, operating passenger train services and related rail transport operations in the United Kingdom.
  • 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_69c009088f3081909cd467b05919de30 completed March 22, 2026, 3:21 p.m.
NER Named-entity recognition batch_69c06ab6abbc8190a4971ad5a654b0cd completed March 22, 2026, 10:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69c653bf5c30819083e4e5484b2bd8cc completed March 27, 2026, 9:54 a.m.
NEDg Description generation batch_69c6547160fc8190b64176073bf94cad completed March 27, 2026, 9:57 a.m.
NED2 Entity disambiguation (via description) batch_69c6553dcbe48190881c27f0ad095345 completed March 27, 2026, 10 a.m.
Created at: March 22, 2026, 4:53 p.m.