Triple

T18579534
Position Surface form Disambiguated ID Type / Status
Subject Piacenza railway station E454072 entity
Predicate isOnCorridor P1018 FINISHED
Object Po Valley rail corridor
The Po Valley rail corridor is a major railway axis running through northern Italy’s Po Valley, linking key cities and serving as an important route for both passenger and freight traffic.
E1331770 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: Po Valley rail corridor | Statement: [Piacenza railway station, isOnCorridor, Po Valley rail corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Po Valley rail corridor
Context triple: [Piacenza railway station, isOnCorridor, Po Valley rail corridor]
  • A. Trans-Pennine freight corridor
    The Trans-Pennine freight corridor is a major east–west transport route across northern England used to move goods efficiently between key industrial and port regions.
  • B. Main Railway
    The Main Railway is a major German rail line that connects key cities along the River Main, serving as an important corridor in the national railway network.
  • C. Peninsula rail corridor
    The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
  • D. Barrie rail corridor
    The Barrie rail corridor is a major commuter rail line in the Greater Toronto Area that runs between Toronto and Barrie, serving numerous communities along its route.
  • E. Valley Lines railway
    The Valley Lines railway is a commuter rail network in South Wales that links Cardiff with the surrounding South Wales Valleys, providing key regional passenger transport services.
  • 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: Po Valley rail corridor
Triple: [Piacenza railway station, isOnCorridor, Po Valley rail corridor]
Generated description
The Po Valley rail corridor is a major railway axis running through northern Italy’s Po Valley, linking key cities and serving as an important route for both passenger and freight traffic.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Po Valley rail corridor
Target entity description: The Po Valley rail corridor is a major railway axis running through northern Italy’s Po Valley, linking key cities and serving as an important route for both passenger and freight traffic.
  • A. Trans-Pennine freight corridor
    The Trans-Pennine freight corridor is a major east–west transport route across northern England used to move goods efficiently between key industrial and port regions.
  • B. Main Railway
    The Main Railway is a major German rail line that connects key cities along the River Main, serving as an important corridor in the national railway network.
  • C. Peninsula rail corridor
    The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
  • D. Barrie rail corridor
    The Barrie rail corridor is a major commuter rail line in the Greater Toronto Area that runs between Toronto and Barrie, serving numerous communities along its route.
  • E. Valley Lines railway
    The Valley Lines railway is a commuter rail network in South Wales that links Cardiff with the surrounding South Wales Valleys, providing key regional passenger transport services.
  • 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_69d8d38974308190a9174430ef256b73 completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e543ce63188190b14a37c5ca9c2726 completed April 19, 2026, 9:06 p.m.
NED1 Entity disambiguation (via context triple) batch_6a04f88cb7c881909911b2c28a72fcf6 completed May 13, 2026, 10:17 p.m.
NEDg Description generation batch_6a04f9fc493881909ba9159748d4f3fb completed May 13, 2026, 10:23 p.m.
NED2 Entity disambiguation (via description) batch_6a04fad8daa88190961d643d30a52aa7 completed May 13, 2026, 10:27 p.m.
Created at: April 10, 2026, 11:43 a.m.