Triple

T14495664
Position Surface form Disambiguated ID Type / Status
Subject Doce River E359489 entity
Predicate affectedBy P9 FINISHED
Object Fundão dam collapse
The Fundão dam collapse was a catastrophic 2015 mining waste disaster in Brazil that released millions of cubic meters of toxic sludge, causing widespread environmental damage and contamination along the Doce River basin.
 E1103682 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: Fundão dam collapse | Statement: [Doce River, affectedBy, Fundão dam collapse]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fundão dam collapse
Context triple: [Doce River, affectedBy, Fundão dam collapse]
  • A. Barra Bonita Dam
    Barra Bonita Dam is a hydroelectric and navigation dam complex in the state of São Paulo, Brazil, known for regulating the Tietê River and forming the Barra Bonita Reservoir.
  • B. Gouvães Dam
    Gouvães Dam is a hydroelectric dam in northern Portugal that forms part of the Tâmega River energy complex, contributing to regional power generation and water management.
  • C. Angostura Dam
    Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
  • D. Angostura Dam
    Angostura Dam is a major hydroelectric dam in Mexico that forms part of the country’s important Grijalva River power generation system.
  • E. Xingó Dam
    Xingó Dam is a large hydroelectric dam complex in northeastern Brazil that generates power and helps regulate the flow of the São Francisco River.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Fundão dam collapse
Triple: [Doce River, affectedBy, Fundão dam collapse]
Generated description
The Fundão dam collapse was a catastrophic 2015 mining waste disaster in Brazil that released millions of cubic meters of toxic sludge, causing widespread environmental damage and contamination along the Doce River basin.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Fundão dam collapse
Target entity description: The Fundão dam collapse was a catastrophic 2015 mining waste disaster in Brazil that released millions of cubic meters of toxic sludge, causing widespread environmental damage and contamination along the Doce River basin.
  • A. Barra Bonita Dam
    Barra Bonita Dam is a hydroelectric and navigation dam complex in the state of São Paulo, Brazil, known for regulating the Tietê River and forming the Barra Bonita Reservoir.
  • B. Gouvães Dam
    Gouvães Dam is a hydroelectric dam in northern Portugal that forms part of the Tâmega River energy complex, contributing to regional power generation and water management.
  • C. Angostura Dam
    Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
  • D. Angostura Dam
    Angostura Dam is a major hydroelectric dam in Mexico that forms part of the country’s important Grijalva River power generation system.
  • E. Xingó Dam
    Xingó Dam is a large hydroelectric dam complex in northeastern Brazil that generates power and helps regulate the flow of the São Francisco River.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d8279740308190af9df93a3af8592e completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de93109cb081909a6e846db23a4635 completed April 14, 2026, 7:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd6d9731588190b27a826582e5fc6d completed May 8, 2026, 4:59 a.m.
NEDg Description generation batch_69fd6f80e3a081908c43915275898852 completed May 8, 2026, 5:07 a.m.
NED2 Entity disambiguation (via description) batch_69fd7016a3c48190a1ea2fefeea92c60 completed May 8, 2026, 5:09 a.m.
Created at: April 10, 2026, 1:21 a.m.