Triple

T9867379
Position Surface form Disambiguated ID Type / Status
Subject Yuzhnaya station E239866 entity
Predicate isPartOfNetwork P840 FINISHED
Object Volgograd urban rail network E41308 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: Volgograd urban rail network | Statement: [Yuzhnaya station, isPartOfNetwork, Volgograd urban rail network]

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: Volgograd urban rail network
Context triple: [Yuzhnaya station, isPartOfNetwork, Volgograd urban rail network]
  • A. Volgograd tram network
    The Volgograd tram network is an extensive urban tramway system serving the Russian city of Volgograd, providing surface-level public transport that complements the partially grade-separated Volgograd Metrotram.
  • B. Volgograd Metrotram chosen
    The Volgograd Metrotram is a hybrid light rail and underground tram system in Volgograd, Russia, providing rapid transit-style service along a dedicated north–south corridor through the city.
  • C. Volgograd trolleybus network
    The Volgograd trolleybus network is an electric public transit system in Volgograd, Russia, providing urban transportation via trolleybuses powered by overhead wires.
  • D. Nizhny Novgorod railway junction
    Nizhny Novgorod railway junction is a major rail hub in western Russia that connects Nizhny Novgorod Oblast with key national and regional railway routes.
  • E. Nizhny Novgorod Metro
    The Nizhny Novgorod Metro is a rapid transit system serving the city of Nizhny Novgorod, Russia, providing urban rail transportation across several lines and stations.
  • 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_69ca84e7506c819095cbde4ff16512bb elicitation completed
NER batch_69cdb3d209ac8190b9bc9ff017a132da ner completed
NED1 batch_69d20d60b2f8819087f4242f36b05a49 ned_source_triple completed
Created at: March 30, 2026, 8:36 p.m.