Triple

T17623164
Position Surface form Disambiguated ID Type / Status
Subject Paraná River hydroelectric system E429760 entity
Predicate includesReservoir P79074 FINISHED
Object Rosana Reservoir
Rosana Reservoir is a large artificial lake in Brazil formed by a hydroelectric dam on the Paranapanema River, used primarily for power generation, water regulation, and regional recreation.
E1286232 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: Rosana Reservoir | Statement: [Paraná River hydroelectric system, includesReservoir, Rosana Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Rosana Reservoir
Context triple: [Paraná River hydroelectric system, includesReservoir, Rosana Reservoir]
  • A. Betania Reservoir
    Betania Reservoir is an artificial lake in Colombia formed by the Betania Dam, primarily used for hydroelectric power generation, irrigation, and aquaculture.
  • B. Itá Reservoir
    Itá Reservoir is an artificial lake in southern Brazil formed by the Itá Dam on the Uruguay River, used primarily for hydroelectric power generation and regional water management.
  • C. Vasona Reservoir
    Vasona Reservoir is a man-made lake in Los Gatos, California, popular for recreation such as boating, fishing, and picnicking within Vasona Lake County Park.
  • D. Zola Reservoir
    Zola Reservoir is an artificial lake in southeastern France formed by the Zola Dam, primarily used for water supply and regional water management.
  • E. Zaza Reservoir
    Zaza Reservoir is the largest artificial lake in Cuba, serving as a major source of irrigation water and supporting local fisheries and flood control.
  • 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: Rosana Reservoir
Triple: [Paraná River hydroelectric system, includesReservoir, Rosana Reservoir]
Generated description
Rosana Reservoir is a large artificial lake in Brazil formed by a hydroelectric dam on the Paranapanema River, used primarily for power generation, water regulation, and regional recreation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Rosana Reservoir
Target entity description: Rosana Reservoir is a large artificial lake in Brazil formed by a hydroelectric dam on the Paranapanema River, used primarily for power generation, water regulation, and regional recreation.
  • A. Betania Reservoir
    Betania Reservoir is an artificial lake in Colombia formed by the Betania Dam, primarily used for hydroelectric power generation, irrigation, and aquaculture.
  • B. Itá Reservoir
    Itá Reservoir is an artificial lake in southern Brazil formed by the Itá Dam on the Uruguay River, used primarily for hydroelectric power generation and regional water management.
  • C. Vasona Reservoir
    Vasona Reservoir is a man-made lake in Los Gatos, California, popular for recreation such as boating, fishing, and picnicking within Vasona Lake County Park.
  • D. Zola Reservoir
    Zola Reservoir is an artificial lake in southeastern France formed by the Zola Dam, primarily used for water supply and regional water management.
  • E. Zaza Reservoir
    Zaza Reservoir is the largest artificial lake in Cuba, serving as a major source of irrigation water and supporting local fisheries and flood control.
  • 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_69d889e37f308190a6aa0a69daff86c7 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e46dba664c81909dcaf44779db5565 completed April 19, 2026, 5:52 a.m.
NED1 Entity disambiguation (via context triple) batch_6a02efa7b3bc8190bfdb7bc4f3aa5371 completed May 12, 2026, 9:15 a.m.
NEDg Description generation batch_6a02f033da3081908124079eedc3a5c7 completed May 12, 2026, 9:17 a.m.
NED2 Entity disambiguation (via description) batch_6a02f103b3c8819097dda16ec3dfa84e completed May 12, 2026, 9:21 a.m.
Created at: April 10, 2026, 5:52 a.m.