Triple

T10553485
Position Surface form Disambiguated ID Type / Status
Subject Mackinac Bridge E249012 entity
Predicate maintainedBy P86 FINISHED
Object Mackinac Bridge Authority E249011 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: Mackinac Bridge Authority | Statement: [Mackinac Bridge, maintainedBy, Mackinac Bridge Authority]

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: Mackinac Bridge Authority
Context triple: [Mackinac Bridge, maintainedBy, Mackinac Bridge Authority]
  • A. Mackinac Bridge Authority chosen
    The Mackinac Bridge Authority is a public agency responsible for operating, managing, and overseeing the finances and maintenance of Michigan’s Mackinac Bridge.
  • B. Sault Ste. Marie Bridge Authority
    The Sault Ste. Marie Bridge Authority is a bi-national public agency that operates and maintains the international bridge connecting Sault Ste. Marie, Michigan, and Sault Ste. Marie, Ontario.
  • C. Detroit International Bridge Company
    Detroit International Bridge Company is a private firm that owns and operates the Ambassador Bridge, a major international crossing between Detroit, Michigan, and Windsor, Ontario.
  • D. Niagara Falls Bridge Commission
    The Niagara Falls Bridge Commission is a bi-national public agency that owns and operates key international bridges connecting the United States and Canada in the Niagara Falls region.
  • E. Federal Bridge Corporation (Canada)
    The Federal Bridge Corporation (Canada) is a Canadian Crown corporation responsible for owning, operating, and maintaining several major international bridge crossings between Canada and the United States.
  • 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_69d381c733c08190ab1dd6239f5f34ae elicitation completed
NER batch_69d52710869c81909b6db1a190825bad ner completed
NED1 batch_69d9346f6a38819087647e7a09f40c41 ned_source_triple completed
Created at: April 6, 2026, 12:34 p.m.