Triple

T6995809
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific Railway, Southern Branch E162209 entity
Predicate regionServed P82 FINISHED
Object American Midwest E405 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: American Midwest | Statement: [Union Pacific Railway, Southern Branch, regionServed, American Midwest]

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: American Midwest
Context triple: [Union Pacific Railway, Southern Branch, regionServed, American Midwest]
  • A. Midwestern United States chosen
    The Midwestern United States is a region of the country known for its agricultural heartland, major industrial cities, and central role in American culture and history.
  • B. Midwest Region
    The Midwest Region is one of the four geographic brackets used to organize teams and games in the NCAA Division I Men’s Basketball Tournament.
  • C. Middle West
    Middle West is an independent record label known for releasing music by projects such as Justin Vernon’s blues-rock band The Shouting Matches.
  • D. Central United States
    The Central United States is a broad region of the country that spans the middle portion of the contiguous U.S., encompassing parts of the Midwest, Great Plains, and South.
  • E. North Central
    North Central is one of Nigeria’s six geopolitical zones, encompassing several states in the country’s middle belt region.
  • 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_69c68857ffc08190857dc62cd5253777 elicitation completed
NER batch_69c6dbec259c8190bb4cfbc1ff6fc786 ner completed
NED1 batch_69c76a1fa11481908450978acc1e0913 ned_source_triple completed
Created at: March 27, 2026, 2:32 p.m.