Triple

T18078229
Position Surface form Disambiguated ID Type / Status
Subject Río Blanco E432613 entity
Predicate hasHistoricalEvent P2107 FINISHED
Object Río Blanco massacre of 1907 — NE NERFINISHED

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: Río Blanco massacre of 1907 | Statement: [Río Blanco, hasHistoricalEvent, Río Blanco massacre of 1907]

Disambiguation candidates (2 decisions)

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: Río Blanco massacre of 1907
Context triple: [Río Blanco, hasHistoricalEvent, Río Blanco massacre of 1907]
  • A. Marias Massacre
    The Marias Massacre was an 1870 U.S. Army attack in Montana in which troops killed a large number of Piegan Blackfeet people, including many women, children, and elders.
  • B. Camp Verde Indian massacre of 1875
    The Camp Verde Indian massacre of 1875 was a brutal attack in Arizona Territory in which U.S. forces killed and forcibly removed Yavapai people during the wider campaign of violence and displacement against Native Americans.
  • C. Nellie massacre
    The Nellie massacre was a 1983 mass killing in Assam, India, in which thousands of mostly Bengali-speaking Muslims were brutally murdered amid ethnic and political tensions during the Assam Movement.
  • D. Bridge Gulch Massacre
    The Bridge Gulch Massacre was an 1852 mass killing of Wintu people in Trinity County, California, carried out by a militia as part of the broader campaign of violence against Indigenous Californians.
  • E. Barrios Altos massacre
    The Barrios Altos massacre was a notorious 1991 extrajudicial killing of civilians in Lima by a Peruvian death squad, emblematic of the human rights abuses committed during Peru’s internal armed conflict.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Río Blanco massacre of 1907
Target entity description: The Río Blanco massacre of 1907 was a violent repression by Mexican federal forces against striking textile workers in Veracruz, becoming a key symbol of labor struggle and social unrest in the final years of the Porfirio Díaz regime.
  • A. Marias Massacre
    The Marias Massacre was an 1870 U.S. Army attack in Montana in which troops killed a large number of Piegan Blackfeet people, including many women, children, and elders.
  • B. Camp Verde Indian massacre of 1875
    The Camp Verde Indian massacre of 1875 was a brutal attack in Arizona Territory in which U.S. forces killed and forcibly removed Yavapai people during the wider campaign of violence and displacement against Native Americans.
  • C. Nellie massacre
    The Nellie massacre was a 1983 mass killing in Assam, India, in which thousands of mostly Bengali-speaking Muslims were brutally murdered amid ethnic and political tensions during the Assam Movement.
  • D. Bridge Gulch Massacre
    The Bridge Gulch Massacre was an 1852 mass killing of Wintu people in Trinity County, California, carried out by a militia as part of the broader campaign of violence against Indigenous Californians.
  • E. Barrios Altos massacre
    The Barrios Altos massacre was a notorious 1991 extrajudicial killing of civilians in Lima by a Peruvian death squad, emblematic of the human rights abuses committed during Peru’s internal armed conflict.
  • F. None of above. chosen

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69d8b9070cac81909fa9473fb1c3f1c7 elicitation completed
NER batch_69e4d9f6a85481909894c39c8be98d5d ner completed
Created at: April 10, 2026, 10:26 a.m.