Triple

T18579533
Position Surface form Disambiguated ID Type / Status
Subject Piacenza railway station E454072 entity
Predicate isOnCorridor P1018 FINISHED
Object north–south Italian rail corridor
The north–south Italian rail corridor is a major railway axis that connects key cities along Italy’s length, facilitating long-distance passenger and freight transport between the country’s northern and southern regions.
E1331769 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: north–south Italian rail corridor | Statement: [Piacenza railway station, isOnCorridor, north–south Italian rail corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: north–south Italian rail corridor
Context triple: [Piacenza railway station, isOnCorridor, north–south Italian rail corridor]
  • A. Turin–Trieste corridor
    The Turin–Trieste corridor is a major east–west transport axis in northern Italy linking the industrial city of Turin with the Adriatic port city of Trieste and intermediate urban and economic centers.
  • B. Milan–Bologna railway
    The Milan–Bologna railway is a major Italian mainline rail corridor connecting the northern cities of Milan and Bologna and forming a key segment of the country’s high-capacity transport network.
  • C. Milan–Rome high-speed rail line
    The Milan–Rome high-speed rail line is a major Italian high-speed railway corridor linking the country’s financial and political capitals and forming a key north–south axis in Europe’s rail system.
  • D. Turin–Naples high-speed corridor
    The Turin–Naples high-speed corridor is a major Italian high-speed rail line that connects the northern city of Turin with Naples in the south, forming the backbone of Italy’s high-speed rail network.
  • E. Bologna–Ancona railway
    The Bologna–Ancona railway is a major Italian rail line connecting the inland city of Bologna with the Adriatic coastal city of Ancona, serving as an important corridor for 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: north–south Italian rail corridor
Triple: [Piacenza railway station, isOnCorridor, north–south Italian rail corridor]
Generated description
The north–south Italian rail corridor is a major railway axis that connects key cities along Italy’s length, facilitating long-distance passenger and freight transport between the country’s northern and southern regions.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: north–south Italian rail corridor
Target entity description: The north–south Italian rail corridor is a major railway axis that connects key cities along Italy’s length, facilitating long-distance passenger and freight transport between the country’s northern and southern regions.
  • A. Turin–Trieste corridor
    The Turin–Trieste corridor is a major east–west transport axis in northern Italy linking the industrial city of Turin with the Adriatic port city of Trieste and intermediate urban and economic centers.
  • B. Milan–Bologna railway
    The Milan–Bologna railway is a major Italian mainline rail corridor connecting the northern cities of Milan and Bologna and forming a key segment of the country’s high-capacity transport network.
  • C. Milan–Rome high-speed rail line
    The Milan–Rome high-speed rail line is a major Italian high-speed railway corridor linking the country’s financial and political capitals and forming a key north–south axis in Europe’s rail system.
  • D. Turin–Naples high-speed corridor
    The Turin–Naples high-speed corridor is a major Italian high-speed rail line that connects the northern city of Turin with Naples in the south, forming the backbone of Italy’s high-speed rail network.
  • E. Bologna–Ancona railway
    The Bologna–Ancona railway is a major Italian rail line connecting the inland city of Bologna with the Adriatic coastal city of Ancona, serving as an important corridor for 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_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.