Triple

T7670995
Position Surface form Disambiguated ID Type / Status
Subject Ostrava main railway station E173745 entity
Predicate railwayLine P848 FINISHED
Object Ostrava–Opava line
The Ostrava–Opava line is a regional railway route in the Czech Republic connecting the industrial city of Ostrava with the historic city of Opava.
E686382 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–Opava line | Statement: [Ostrava main railway station, railwayLine, Ostrava–Opava line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ostrava–Opava line
Context triple: [Ostrava main railway station, railwayLine, Ostrava–Opava line]
  • A. Ostrava–Bohumín line
    The Ostrava–Bohumín line is a key railway route in the Czech Republic that connects the industrial city of Ostrava with the town of Bohumín and forms part of major national and international rail corridors.
  • B. 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.
  • C. Ostrava–Frýdlant nad Ostravicí line
    The Ostrava–Frýdlant nad Ostravicí line is a regional railway route in the Moravian-Silesian Region of the Czech Republic that connects the city of Ostrava with the foothills of the Beskid Mountains.
  • D. 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.
  • E. 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.
  • 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–Opava line
Triple: [Ostrava main railway station, railwayLine, Ostrava–Opava line]
Generated description
The Ostrava–Opava line is a regional railway route in the Czech Republic connecting the industrial city of Ostrava with the historic city of Opava.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ostrava–Opava line
Target entity description: The Ostrava–Opava line is a regional railway route in the Czech Republic connecting the industrial city of Ostrava with the historic city of Opava.
  • A. Ostrava–Bohumín line
    The Ostrava–Bohumín line is a key railway route in the Czech Republic that connects the industrial city of Ostrava with the town of Bohumín and forms part of major national and international rail corridors.
  • B. 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.
  • C. Ostrava–Frýdlant nad Ostravicí line
    The Ostrava–Frýdlant nad Ostravicí line is a regional railway route in the Moravian-Silesian Region of the Czech Republic that connects the city of Ostrava with the foothills of the Beskid Mountains.
  • D. 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.
  • E. 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.
  • 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_69c8be205b848190a850abc3f5ac4ef3 completed March 29, 2026, 5:52 a.m.
NEDg Description generation batch_69c8bfc8256081908a6ae947d783f19f completed March 29, 2026, 5:59 a.m.
NED2 Entity disambiguation (via description) batch_69c8c02e7a548190b2c5ad84e4c3f1fb completed March 29, 2026, 6:01 a.m.
Created at: March 27, 2026, 4 p.m.