Triple

T7709897
Position Surface form Disambiguated ID Type / Status
Subject Sortavala E174720 entity
Predicate railwayLine P848 FINISHED
Object Sortavala–Joensuu railway (historical)
The Sortavala–Joensuu railway (historical) was a former cross-border rail line linking the Karelian town of Sortavala with the Finnish city of Joensuu, playing a role in regional transport before geopolitical changes led to its discontinuation.
E682355 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: Sortavala–Joensuu railway (historical) | Statement: [Sortavala, railwayLine, Sortavala–Joensuu railway (historical)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sortavala–Joensuu railway (historical)
Context triple: [Sortavala, railwayLine, Sortavala–Joensuu railway (historical)]
  • A. Helsinki–Riihimäki railway
    The Helsinki–Riihimäki railway is a major Finnish rail line forming part of the main route north from Helsinki, serving numerous commuter and long-distance trains.
  • B. Helsinki–Lahti line
    The Helsinki–Lahti line is a major Finnish railway route that serves as the country’s primary high-speed corridor between the capital region and eastern Finland.
  • C. Finnish railway network
    The Finnish railway network is a nationwide system of rail lines connecting major cities, industrial centers, and remote regions across Finland, supporting both passenger and freight transport in a challenging Nordic climate.
  • D. Roth–Greding railway (historical)
    The Roth–Greding railway was a former local rail line in Bavaria, Germany, that connected the town of Roth with Greding and served regional passenger and freight traffic before its closure.
  • E. Lappeenranta railway station
    Lappeenranta railway station is the main passenger rail hub serving the city of Lappeenranta in southeastern Finland, providing regional and long-distance train connections.
  • 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: Sortavala–Joensuu railway (historical)
Triple: [Sortavala, railwayLine, Sortavala–Joensuu railway (historical)]
Generated description
The Sortavala–Joensuu railway (historical) was a former cross-border rail line linking the Karelian town of Sortavala with the Finnish city of Joensuu, playing a role in regional transport before geopolitical changes led to its discontinuation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Sortavala–Joensuu railway (historical)
Target entity description: The Sortavala–Joensuu railway (historical) was a former cross-border rail line linking the Karelian town of Sortavala with the Finnish city of Joensuu, playing a role in regional transport before geopolitical changes led to its discontinuation.
  • A. Helsinki–Riihimäki railway
    The Helsinki–Riihimäki railway is a major Finnish rail line forming part of the main route north from Helsinki, serving numerous commuter and long-distance trains.
  • B. Helsinki–Lahti line
    The Helsinki–Lahti line is a major Finnish railway route that serves as the country’s primary high-speed corridor between the capital region and eastern Finland.
  • C. Finnish railway network
    The Finnish railway network is a nationwide system of rail lines connecting major cities, industrial centers, and remote regions across Finland, supporting both passenger and freight transport in a challenging Nordic climate.
  • D. Roth–Greding railway (historical)
    The Roth–Greding railway was a former local rail line in Bavaria, Germany, that connected the town of Roth with Greding and served regional passenger and freight traffic before its closure.
  • E. Lappeenranta railway station
    Lappeenranta railway station is the main passenger rail hub serving the city of Lappeenranta in southeastern Finland, providing regional and long-distance train connections.
  • 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_69c6995b3e8c8190833108f883d5f53c completed March 27, 2026, 2:51 p.m.
NER Named-entity recognition batch_69c702ac0060819084f9c0242a5ffa9a completed March 27, 2026, 10:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69c8accc07f4819089a07726c8313839 completed March 29, 2026, 4:38 a.m.
NEDg Description generation batch_69c8add4153081909f8d77b019a64a2f completed March 29, 2026, 4:43 a.m.
NED2 Entity disambiguation (via description) batch_69c8ae60b30881908c100ae489d6577e completed March 29, 2026, 4:45 a.m.
Created at: March 27, 2026, 4:04 p.m.