Triple

T7670992
Position Surface form Disambiguated ID Type / Status
Subject Ostrava main railway station E173745 entity
Predicate railwayLine P848 FINISHED
Object Ostrava–Praha line
The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
E681104 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: Ostrava–Praha line | Statement: [Ostrava main railway station, railwayLine, Ostrava–Praha line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ostrava–Praha line
Context triple: [Ostrava main railway station, railwayLine, Ostrava–Praha line]
  • A. 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.
  • B. Plzeň–Cheb railway line
    The Plzeň–Cheb railway line is a major rail route in western Czechia connecting the city of Plzeň with the border city of Cheb and forming part of an important corridor toward Germany.
  • C. Plzeň–Klatovy railway line
    The Plzeň–Klatovy railway line is a regional rail route in the Czech Republic connecting the city of Plzeň with the town of Klatovy and serving as an important link in western Bohemia’s rail network.
  • D. Hradec Králové–Jičín railway
    The Hradec Králové–Jičín railway is a regional rail line in the Czech Republic connecting the cities of Hradec Králové and Jičín.
  • E. 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.
  • 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: Ostrava–Praha line
Triple: [Ostrava main railway station, railwayLine, Ostrava–Praha line]
Generated description
The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ostrava–Praha line
Target entity description: The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
  • A. 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.
  • B. Plzeň–Cheb railway line
    The Plzeň–Cheb railway line is a major rail route in western Czechia connecting the city of Plzeň with the border city of Cheb and forming part of an important corridor toward Germany.
  • C. Plzeň–Klatovy railway line
    The Plzeň–Klatovy railway line is a regional rail route in the Czech Republic connecting the city of Plzeň with the town of Klatovy and serving as an important link in western Bohemia’s rail network.
  • D. Hradec Králové–Jičín railway
    The Hradec Králové–Jičín railway is a regional rail line in the Czech Republic connecting the cities of Hradec Králové and Jičín.
  • E. 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.
  • 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_69c699562484819086752091e3164a27 completed March 27, 2026, 2:51 p.m.
NER Named-entity recognition batch_69c701dd3c808190990e07ced94b3297 completed March 27, 2026, 10:17 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8a229dd348190b9a781b4d34d7b5b completed March 29, 2026, 3:53 a.m.
NEDg Description generation batch_69c8a31b932c8190b8be20c92009210b completed March 29, 2026, 3:57 a.m.
NED2 Entity disambiguation (via description) batch_69c8a3f3b02081909cfb61d34f97fe07 completed March 29, 2026, 4 a.m.
Created at: March 27, 2026, 4 p.m.