Triple

T16029286
Position Surface form Disambiguated ID Type / Status
Subject Helsinki Central railway station E388801 entity
Predicate railwayLine P848 FINISHED
Object Riihimäki–Tampere railway E921316 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: Riihimäki–Tampere railway | Statement: [Helsinki Central railway station, railwayLine, Riihimäki–Tampere railway]

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: Riihimäki–Tampere railway
Context triple: [Helsinki Central railway station, railwayLine, Riihimäki–Tampere railway]
  • A. Riihimäki–Tampere railway chosen
    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.
  • B. Helsinki–Riihimäki railway
    The Helsinki–Riihimäki railway is a major Finnish rail line forming part of the main route north from Helsinki, serving numerous commuter and long-distance trains.
  • C. Helsinki–Tampere railway
    The Helsinki–Tampere railway is a major Finnish rail line connecting the capital Helsinki with the city of Tampere, serving as one of the country’s busiest passenger and freight corridors.
  • D. Tampere–Seinäjoki railway line
    The Tampere–Seinäjoki railway line is a major rail route in western Finland that connects the city of Tampere with Seinäjoki, serving both passenger and freight traffic.
  • E. 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.
  • 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_69d86dada3808190825d5f80d72fbe88 elicitation completed
NER batch_69e1832a56ec8190a47fd2cf83a42fd4 ner completed
NED1 batch_69ffcf35ae808190aeb154a273c32a70 ned_source_triple completed
Created at: April 10, 2026, 4:56 a.m.