Triple

T5151265
Position Surface form Disambiguated ID Type / Status
Subject Sofia–Kulata railway line E116198 entity
Predicate partOf P40 FINISHED
Object Bulgarian rail network
The Bulgarian rail network is the national railway system of Bulgaria, connecting major cities, towns, and border crossings through an extensive system of passenger and freight lines.
 E496982 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: Bulgarian rail network | Statement: [Sofia–Kulata railway line, partOf, Bulgarian rail network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Bulgarian rail network
Context triple: [Sofia–Kulata railway line, partOf, Bulgarian rail network]
  • A. Sofia–Kulata railway line
    The Sofia–Kulata railway line is a major rail route in southwestern Bulgaria that connects the capital Sofia with the Greek border near Kulata, serving as an important international transport corridor.
  • B. Polish railway network
    The Polish railway network is the nationwide system of rail lines and infrastructure in Poland that connects cities, towns, and regions for passenger and freight transport.
  • C. Belgian railway network
    The Belgian railway network is a dense, electrified rail system covering all regions of Belgium and connecting major cities domestically and internationally.
  • D. European rail network
    The European rail network is an extensive, interconnected system of railway lines and services spanning multiple European countries, enabling both international and regional passenger and freight transport.
  • E. Crimean Railway network
    The Crimean Railway network is the regional rail system serving the Crimean Peninsula, connecting its major cities, ports, and transport hubs.
  • 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: Bulgarian rail network
Triple: [Sofia–Kulata railway line, partOf, Bulgarian rail network]
Generated description
The Bulgarian rail network is the national railway system of Bulgaria, connecting major cities, towns, and border crossings through an extensive system of passenger and freight lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Bulgarian rail network
Target entity description: The Bulgarian rail network is the national railway system of Bulgaria, connecting major cities, towns, and border crossings through an extensive system of passenger and freight lines.
  • A. Sofia–Kulata railway line
    The Sofia–Kulata railway line is a major rail route in southwestern Bulgaria that connects the capital Sofia with the Greek border near Kulata, serving as an important international transport corridor.
  • B. Polish railway network
    The Polish railway network is the nationwide system of rail lines and infrastructure in Poland that connects cities, towns, and regions for passenger and freight transport.
  • C. Belgian railway network
    The Belgian railway network is a dense, electrified rail system covering all regions of Belgium and connecting major cities domestically and internationally.
  • D. European rail network
    The European rail network is an extensive, interconnected system of railway lines and services spanning multiple European countries, enabling both international and regional passenger and freight transport.
  • E. Crimean Railway network
    The Crimean Railway network is the regional rail system serving the Crimean Peninsula, connecting its major cities, ports, and transport hubs.
  • 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_69bd445d94788190b72e2cc563120995 completed March 20, 2026, 12:58 p.m.
NER Named-entity recognition batch_69bd78d965548190b09f574acf3b9b1a completed March 20, 2026, 4:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69bed004538c81908fac258ea99f7e63 completed March 21, 2026, 5:06 p.m.
NEDg Description generation batch_69bed07d478c8190aac215cb05bedae0 completed March 21, 2026, 5:08 p.m.
NED2 Entity disambiguation (via description) batch_69bed0d56af481908a3fb0693f151fb3 completed March 21, 2026, 5:09 p.m.
Created at: March 20, 2026, 1:44 p.m.