Triple

T5152775
Position Surface form Disambiguated ID Type / Status
Subject Ellen Lewis Herndon Arthur E116235 entity
Predicate spouse P13 FINISHED
Object Chester A. Arthur E16994 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: Chester A. Arthur | Statement: [Ellen Lewis Herndon Arthur, spouse, Chester A. Arthur]

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: Chester A. Arthur
Context triple: [Ellen Lewis Herndon Arthur, spouse, Chester A. Arthur]
  • A. Chester A. Arthur chosen
    Chester A. Arthur was the 21st president of the United States, best known for his civil service reforms and leadership during the Gilded Age.
  • B. Chester Arthur Burnett
    Chester Arthur Burnett, better known as Howlin' Wolf, was a seminal American blues singer, guitarist, and harmonica player whose powerful voice and recordings profoundly influenced rock and blues music.
  • C. Rutherford B. Hayes
    Rutherford B. Hayes was the 19th president of the United States, known for overseeing the end of Reconstruction and the controversial 1876 election that marked a key moment in the Gilded Age.
  • D. Rutherford Hayes Jr.
    Rutherford Hayes Jr. was the son of U.S. President Rutherford B. Hayes, belonging to the prominent Hayes family of 19th-century American politics.
  • E. Benjamin Harrison
    Benjamin Harrison was the 23rd president of the United States, serving from 1889 to 1893 and overseeing key developments in federal economic regulation and tariff policy during the late 19th century.
  • 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_69bd445d94788190b72e2cc563120995 elicitation completed
NER batch_69bd78daab708190a42734a14dddb2fc ner completed
NED1 batch_69bf06a74d4c8190a353007c564ba2f6 ned_source_triple completed
Created at: March 20, 2026, 1:44 p.m.