Triple

T8789480
Position Surface form Disambiguated ID Type / Status
Subject Profsoyuznaya station E209124 entity
Predicate transportSystem P941 FINISHED
Object Volgograd Metrotram light rail system 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 Metrotram light rail system | Statement: [Profsoyuznaya station, transportSystem, Volgograd Metrotram light rail system]

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 Metrotram light rail system
Context triple: [Profsoyuznaya station, transportSystem, Volgograd Metrotram light rail system]
  • A. 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.
  • B. 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.
  • 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. Moscow tram network
    The Moscow tram network is an extensive urban tramway system that complements the Moscow Metro by providing surface-level public transportation across the city.
  • E. Novosibirsk Metro
    Novosibirsk Metro is a rapid transit system in Novosibirsk, Russia, serving as a key component of the city's public transportation network with several lines and stations across the urban area.
  • 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_69ca836168108190bb43d3dc235c1f55 elicitation completed
NER batch_69cc5f8b0c108190af53d4bb9b132c5c ner completed
NED1 batch_69d017060fd08190bd053f988bd74048 ned_source_triple completed
Created at: March 30, 2026, 6:43 p.m.