Triple

T15554438
Position Surface form Disambiguated ID Type / Status
Subject Voghera E370831 entity
Predicate railwayJunctionFor P14468 FINISHED
Object Turin–Piacenza railway
The Turin–Piacenza railway is a major Italian rail line connecting the city of Turin with Piacenza, forming part of an important east–west transport corridor in northern Italy.
 E1164451 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: Turin–Piacenza railway | Statement: [Voghera, railwayJunctionFor, Turin–Piacenza railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Turin–Piacenza railway
Context triple: [Voghera, railwayJunctionFor, Turin–Piacenza railway]
  • A. Turin–Savona railway
    The Turin–Savona railway is a major Italian rail line connecting the city of Turin in Piedmont with the port city of Savona on the Ligurian coast, serving both passenger and freight traffic across northwestern Italy.
  • B. Turin–Cuneo railway
    The Turin–Cuneo railway is a regional rail line in northwestern Italy that connects the city of Turin with Cuneo through the Piedmont region.
  • C. Alessandria–Piacenza railway
    The Alessandria–Piacenza railway is an Italian rail line connecting the cities of Alessandria in Piedmont and Piacenza in Emilia-Romagna, serving as an important regional transport corridor.
  • D. Turin–Genoa railway
    The Turin–Genoa railway is a major Italian rail line that connects the industrial city of Turin with the port city of Genoa, serving as a key north–south transport corridor across northwestern Italy.
  • E. Verona–Mantua–Modena railway
    The Verona–Mantua–Modena railway is an Italian rail line in northern Italy that connects the cities of Verona, Mantua, and Modena, serving as an important regional passenger and freight route.
  • 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: Turin–Piacenza railway
Triple: [Voghera, railwayJunctionFor, Turin–Piacenza railway]
Generated description
The Turin–Piacenza railway is a major Italian rail line connecting the city of Turin with Piacenza, forming part of an important east–west transport corridor in northern Italy.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Turin–Piacenza railway
Target entity description: The Turin–Piacenza railway is a major Italian rail line connecting the city of Turin with Piacenza, forming part of an important east–west transport corridor in northern Italy.
  • A. Turin–Savona railway
    The Turin–Savona railway is a major Italian rail line connecting the city of Turin in Piedmont with the port city of Savona on the Ligurian coast, serving both passenger and freight traffic across northwestern Italy.
  • B. Turin–Cuneo railway
    The Turin–Cuneo railway is a regional rail line in northwestern Italy that connects the city of Turin with Cuneo through the Piedmont region.
  • C. Alessandria–Piacenza railway
    The Alessandria–Piacenza railway is an Italian rail line connecting the cities of Alessandria in Piedmont and Piacenza in Emilia-Romagna, serving as an important regional transport corridor.
  • D. Turin–Genoa railway
    The Turin–Genoa railway is a major Italian rail line that connects the industrial city of Turin with the port city of Genoa, serving as a key north–south transport corridor across northwestern Italy.
  • E. Verona–Mantua–Modena railway
    The Verona–Mantua–Modena railway is an Italian rail line in northern Italy that connects the cities of Verona, Mantua, and Modena, serving as an important regional passenger and freight route.
  • 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_69d85cc6cf40819091f4a5facee1ebe6 completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69e04a96c0c88190808f68601a36b506 completed April 16, 2026, 2:33 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff4c3e67c881909a9fa1e483a364be completed May 9, 2026, 3:01 p.m.
NEDg Description generation batch_69ff4d7e60dc8190aa80cb269b1811bc completed May 9, 2026, 3:06 p.m.
NED2 Entity disambiguation (via description) batch_69ff4e03e8748190a23e7577accaf04a completed May 9, 2026, 3:08 p.m.
Created at: April 10, 2026, 4:09 a.m.