Triple

T15086477
Position Surface form Disambiguated ID Type / Status
Subject Turin–Genoa railway E360286 entity
Predicate owner P347 FINISHED
Object Rete Ferroviaria Italiana E174505 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Rete Ferroviaria Italiana | Statement: [Turin–Genoa railway, owner, Rete Ferroviaria Italiana]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Rete Ferroviaria Italiana
Context triple: [Turin–Genoa railway, owner, Rete Ferroviaria Italiana]
  • A. Rete Ferroviaria Italiana chosen
    Rete Ferroviaria Italiana is Italy’s state-owned rail infrastructure manager responsible for the operation, maintenance, and development of the national railway network.
  • B. Ferrovie dello Stato Italiane
    Ferrovie dello Stato Italiane is Italy’s state-owned national railway holding company, overseeing passenger and freight rail services as well as rail infrastructure through various subsidiaries.
  • C. Trenitalia
    Trenitalia is Italy’s primary national railway operator, running most of the country’s passenger and regional train services.
  • D. Trenitalia Tper
    Trenitalia Tper is a regional Italian railway company that operates passenger train services, particularly in parts of northern Italy including Emilia-Romagna and surrounding areas.
  • E. Fiat Ferroviaria
    Fiat Ferroviaria was an Italian railway rolling stock manufacturer known for producing trains and rail vehicles used across Europe.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d85a035aa88190b52a139d3a1b7b6d elicitation completed
NER batch_69e00276d1608190bc310d5b86ecd1d5 ner completed
NED1 batch_69feb7e188448190b855ace5ab390646 ned_source_triple completed
Created at: April 10, 2026, 3:03 a.m.