Triple

T20368575
Position Surface form Disambiguated ID Type / Status
Subject Bulgarian State Railways E496983 entity
Predicate hasSubsidiary P254 FINISHED
Object BDŽ Putnicheski Prevozi
BDŽ Putnicheski Prevozi is the passenger rail transport company operating Bulgaria’s national railway services as part of the Bulgarian State Railways group.
 E496983 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: BDŽ Putnicheski Prevozi | Statement: [Bulgarian State Railways, hasSubsidiary, BDŽ Putnicheski Prevozi]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: BDŽ Putnicheski Prevozi
Context triple: [Bulgarian State Railways, hasSubsidiary, BDŽ Putnicheski Prevozi]
  • A. Serbian Railways
    Serbian Railways is the national railway company of Serbia, responsible for operating the country’s passenger and freight rail transport network.
  • B. Croatian Railways
    Croatian Railways is Croatia’s national state-owned railway company responsible for operating passenger and freight rail services across the country.
  • C. ČD Cargo
    ČD Cargo is a major Czech freight railway operator that provides cargo transport and logistics services across the Czech Republic and neighboring countries.
  • D. Makedonski Železnici
    Makedonski Železnici is the national railway company of North Macedonia, responsible for operating the country’s passenger and freight rail services.
  • E. Bulgarian State Railways
    Bulgarian State Railways is Bulgaria’s national railway company, responsible for operating the country’s passenger and freight 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: BDŽ Putnicheski Prevozi
Triple: [Bulgarian State Railways, hasSubsidiary, BDŽ Putnicheski Prevozi]
Generated description
BDŽ Putnicheski Prevozi is the passenger rail transport company operating Bulgaria’s national railway services as part of the Bulgarian State Railways group.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: BDŽ Putnicheski Prevozi
Target entity description: BDŽ Putnicheski Prevozi is the passenger rail transport company operating Bulgaria’s national railway services as part of the Bulgarian State Railways group.
  • A. Serbian Railways
    Serbian Railways is the national railway company of Serbia, responsible for operating the country’s passenger and freight rail transport network.
  • B. Croatian Railways
    Croatian Railways is Croatia’s national state-owned railway company responsible for operating passenger and freight rail services across the country.
  • C. ČD Cargo
    ČD Cargo is a major Czech freight railway operator that provides cargo transport and logistics services across the Czech Republic and neighboring countries.
  • D. Makedonski Železnici
    Makedonski Železnici is the national railway company of North Macedonia, responsible for operating the country’s passenger and freight rail services.
  • E. Bulgarian State Railways chosen
    Bulgarian State Railways is Bulgaria’s national railway company, responsible for operating the country’s passenger and freight train services.
  • F. None of above.

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_69e0b4a4f9b081908a5a021919c21ccb completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e678734b188190bb2c5863023f9f8c completed April 20, 2026, 7:03 p.m.
NED1 Entity disambiguation (via context triple) batch_6a08708d48c08190ac0ccbc910d4af4b completed May 16, 2026, 1:26 p.m.
NEDg Description generation batch_6a087129ce3c8190a67ac34ec697ad31 completed May 16, 2026, 1:29 p.m.
NED2 Entity disambiguation (via description) batch_6a0871e3573c81908216b5e508374081 completed May 16, 2026, 1:32 p.m.
Created at: April 16, 2026, 11:26 a.m.