Triple

T6158459
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Vermonter E137381 entity
Predicate terminus P388 FINISHED
Object Washington, D.C. E23 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: Washington, D.C. | Statement: [Amtrak Vermonter, terminus, Washington, D.C.]

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: Washington, D.C.
Context triple: [Amtrak Vermonter, terminus, Washington, D.C.]
  • A. Washington, D.C. chosen
    Washington, D.C. is the capital city of the United States, serving as the nation’s political center and home to its federal government institutions.
  • B. Washington, United States
    Washington, United States is a state in the Pacific Northwest region known for its diverse landscapes, technology industry centered around Seattle, and significant cultural and economic influence.
  • C. District of Columbia
    The District of Columbia is the federal district of the United States that contains the nation’s capital city, Washington, D.C., and serves as the seat of the U.S. federal government.
  • D. Distrito Capital
    Distrito Capital is the federal district that encompasses Caracas, the capital and political center of Venezuela.
  • E. Philadelphia and Washington, D.C.
    Philadelphia and Washington, D.C. are two major East Coast U.S. cities—one in Pennsylvania and the other the nation’s capital—linked by dense political, economic, and cultural ties.
  • 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_69c008a54fc88190b6ce4416490ca79d elicitation completed
NER batch_69c05d32ef548190bc215d052d3497fe ner completed
NED1 batch_69c1417c33d08190bd42558cc734601f ned_source_triple completed
Created at: March 22, 2026, 4:17 p.m.