Triple

T20606264
Position Surface form Disambiguated ID Type / Status
Subject Imatra railway station E506319 entity
Predicate railwayLine P848 FINISHED
Object Kouvola–Joensuu railway
The Kouvola–Joensuu railway is a major Finnish rail line in southeastern and eastern Finland that connects the city of Kouvola with Joensuu, serving both passenger and freight traffic.
E1439553 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: Kouvola–Joensuu railway | Statement: [Imatra railway station, railwayLine, Kouvola–Joensuu railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Kouvola–Joensuu railway
Context triple: [Imatra railway station, railwayLine, Kouvola–Joensuu railway]
  • A. Oulu–Seinäjoki railway
    The Oulu–Seinäjoki railway is a major rail line in western Finland that connects the northern city of Oulu with Seinäjoki, serving as an important route for both passenger and freight traffic.
  • B. Jyväskylä–Äänekoski railway
    The Jyväskylä–Äänekoski railway is a Finnish rail line connecting the city of Jyväskylä with the town of Äänekoski, serving both passenger and freight traffic in Central Finland.
  • C. Tampere–Jyväskylä railway
    The Tampere–Jyväskylä railway is a key Finnish rail line connecting the major inland cities of Tampere and Jyväskylä, serving both passenger and freight traffic through central Finland.
  • D. Tampere–Pori railway
    The Tampere–Pori railway is a Finnish rail line connecting the inland city of Tampere with the coastal city and port of Pori, serving both passenger and freight traffic in western Finland.
  • E. Riihimäki–Tampere railway
    The Riihimäki–Tampere railway is a major rail line in southern Finland that forms part of the main route between Helsinki and the city of Tampere, 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: Kouvola–Joensuu railway
Triple: [Imatra railway station, railwayLine, Kouvola–Joensuu railway]
Generated description
The Kouvola–Joensuu railway is a major Finnish rail line in southeastern and eastern Finland that connects the city of Kouvola with Joensuu, serving both passenger and freight traffic.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Kouvola–Joensuu railway
Target entity description: The Kouvola–Joensuu railway is a major Finnish rail line in southeastern and eastern Finland that connects the city of Kouvola with Joensuu, serving both passenger and freight traffic.
  • A. Oulu–Seinäjoki railway
    The Oulu–Seinäjoki railway is a major rail line in western Finland that connects the northern city of Oulu with Seinäjoki, serving as an important route for both passenger and freight traffic.
  • B. Jyväskylä–Äänekoski railway
    The Jyväskylä–Äänekoski railway is a Finnish rail line connecting the city of Jyväskylä with the town of Äänekoski, serving both passenger and freight traffic in Central Finland.
  • C. Tampere–Jyväskylä railway
    The Tampere–Jyväskylä railway is a key Finnish rail line connecting the major inland cities of Tampere and Jyväskylä, serving both passenger and freight traffic through central Finland.
  • D. Tampere–Pori railway
    The Tampere–Pori railway is a Finnish rail line connecting the inland city of Tampere with the coastal city and port of Pori, serving both passenger and freight traffic in western Finland.
  • E. Riihimäki–Tampere railway
    The Riihimäki–Tampere railway is a major rail line in southern Finland that forms part of the main route between Helsinki and the city of Tampere, 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_69e0b4bb2b4081908fa4a72444120f35 completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e6aa2452888190858d273430cd783d completed April 20, 2026, 10:35 p.m.
NED1 Entity disambiguation (via context triple) batch_6a08b3f56f748190a42864ae428c9f1b completed May 16, 2026, 6:14 p.m.
NEDg Description generation batch_6a08b49702108190810c8e4f5a89ec36 completed May 16, 2026, 6:16 p.m.
NED2 Entity disambiguation (via description) batch_6a08b524b95c8190909c93d471e9397f completed May 16, 2026, 6:19 p.m.
Created at: April 16, 2026, 11:41 a.m.