Triple

T16089708
Position Surface form Disambiguated ID Type / Status
Subject Hlavní nádraží E390328 entity
Predicate railwayLine P848 FINISHED
Object Prague–Brno railway
The Prague–Brno railway is a major Czech rail corridor connecting the capital city Prague with the country’s second-largest city Brno, serving as a key route for both passenger and freight transport.
 E1198448 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: Prague–Brno railway | Statement: [Hlavní nádraží, railwayLine, Prague–Brno railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Prague–Brno railway
Context triple: [Hlavní nádraží, railwayLine, Prague–Brno railway]
  • A. Prague–Hradec Králové railway
    The Prague–Hradec Králové railway is a major Czech rail route connecting the capital city of Prague with the regional center of Hradec Králové, serving both passenger and freight traffic in Bohemia.
  • B. Prague–Plzeň railway line
    The Prague–Plzeň railway line is a major Czech rail corridor connecting the capital city Prague with the industrial and regional hub of Plzeň, serving both passenger and freight traffic.
  • C. Prague–Vienna railway
    The Prague–Vienna railway is a major international rail route connecting the Czech capital Prague with Austria’s capital Vienna, serving as an important corridor for both passenger and freight transport in Central Europe.
  • D. Hradec Králové–Letohrad railway
    The Hradec Králové–Letohrad railway is a regional rail line in the Czech Republic connecting the city of Hradec Králové with the town of Letohrad, serving passenger and local transport across eastern Bohemia.
  • E. Tanvald–Harrachov railway
    The Tanvald–Harrachov railway is a mountain railway line in the Czech Republic known for its steep gradients, scenic Jizera Mountains route, and cross-border connection toward Poland.
  • 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: Prague–Brno railway
Triple: [Hlavní nádraží, railwayLine, Prague–Brno railway]
Generated description
The Prague–Brno railway is a major Czech rail corridor connecting the capital city Prague with the country’s second-largest city Brno, serving as a key route for both passenger and freight transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Prague–Brno railway
Target entity description: The Prague–Brno railway is a major Czech rail corridor connecting the capital city Prague with the country’s second-largest city Brno, serving as a key route for both passenger and freight transport.
  • A. Prague–Hradec Králové railway
    The Prague–Hradec Králové railway is a major Czech rail route connecting the capital city of Prague with the regional center of Hradec Králové, serving both passenger and freight traffic in Bohemia.
  • B. Prague–Plzeň railway line
    The Prague–Plzeň railway line is a major Czech rail corridor connecting the capital city Prague with the industrial and regional hub of Plzeň, serving both passenger and freight traffic.
  • C. Prague–Vienna railway
    The Prague–Vienna railway is a major international rail route connecting the Czech capital Prague with Austria’s capital Vienna, serving as an important corridor for both passenger and freight transport in Central Europe.
  • D. Hradec Králové–Letohrad railway
    The Hradec Králové–Letohrad railway is a regional rail line in the Czech Republic connecting the city of Hradec Králové with the town of Letohrad, serving passenger and local transport across eastern Bohemia.
  • E. Tanvald–Harrachov railway
    The Tanvald–Harrachov railway is a mountain railway line in the Czech Republic known for its steep gradients, scenic Jizera Mountains route, and cross-border connection toward Poland.
  • 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_69d87f198bc48190a8b7e53ca15b7ead completed April 10, 2026, 4:39 a.m.
NER Named-entity recognition batch_69e1845161908190adca2af94710b2cc completed April 17, 2026, 12:52 a.m.
NED1 Entity disambiguation (via context triple) batch_69fffeed4e008190b1e8d924b9dc9d37 completed May 10, 2026, 3:43 a.m.
NEDg Description generation batch_69ffff8ddb04819091d2261acf823d3c completed May 10, 2026, 3:46 a.m.
NED2 Entity disambiguation (via description) batch_69ffffdb48788190879e733d46393529 completed May 10, 2026, 3:47 a.m.
Created at: April 10, 2026, 4:59 a.m.