Triple

T6805874
Position Surface form Disambiguated ID Type / Status
Subject Angostura Dam E156303 entity
Predicate hasReservoir P1025 FINISHED
Object Angostura Reservoir
Angostura Reservoir is a man-made lake in South Dakota used primarily for irrigation, recreation, and wildlife habitat.
 E619548 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: Angostura Reservoir | Statement: [Angostura Dam, hasReservoir, Angostura Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Angostura Reservoir
Context triple: [Angostura Dam, hasReservoir, Angostura Reservoir]
  • A. Cúber reservoir
    Cúber reservoir is an artificial mountain lake in Mallorca, Spain, known for supplying water to the island and for its scenic setting in the Serra de Tramuntana.
  • B. Itumbiara Reservoir
    Itumbiara Reservoir is a large artificial lake in Brazil created for hydroelectric power generation and water regulation on the Paranaíba River.
  • C. Chicoasén Dam
    Chicoasén Dam is a major hydroelectric dam in Chiapas, Mexico, known as one of the largest power-generating facilities in the country.
  • D. El Chocón Dam
    El Chocón Dam is a large hydroelectric dam in Argentina known for its significant role in power generation and flood control on the Limay River.
  • E. Lago Chico
    Lago Chico is a small mountain lake in southern Chile’s Huerquehue National Park, known for its tranquil forested surroundings and scenic hiking access.
  • 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: Angostura Reservoir
Triple: [Angostura Dam, hasReservoir, Angostura Reservoir]
Generated description
Angostura Reservoir is a man-made lake in South Dakota used primarily for irrigation, recreation, and wildlife habitat.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Angostura Reservoir
Target entity description: Angostura Reservoir is a man-made lake in South Dakota used primarily for irrigation, recreation, and wildlife habitat.
  • A. Cúber reservoir
    Cúber reservoir is an artificial mountain lake in Mallorca, Spain, known for supplying water to the island and for its scenic setting in the Serra de Tramuntana.
  • B. Itumbiara Reservoir
    Itumbiara Reservoir is a large artificial lake in Brazil created for hydroelectric power generation and water regulation on the Paranaíba River.
  • C. Chicoasén Dam
    Chicoasén Dam is a major hydroelectric dam in Chiapas, Mexico, known as one of the largest power-generating facilities in the country.
  • D. El Chocón Dam
    El Chocón Dam is a large hydroelectric dam in Argentina known for its significant role in power generation and flood control on the Limay River.
  • E. Lago Chico
    Lago Chico is a small mountain lake in southern Chile’s Huerquehue National Park, known for its tranquil forested surroundings and scenic hiking access.
  • 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_69c68826e6a48190a3d220b541e639de completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d3082dcc8190a84bc056236cc52e completed March 27, 2026, 6:57 p.m.
NED1 Entity disambiguation (via context triple) batch_69c71a9ff30c8190aaf2687dd41fc07a completed March 28, 2026, 12:02 a.m.
NEDg Description generation batch_69c71c17e07c81908fef1cb773a87303 completed March 28, 2026, 12:08 a.m.
NED2 Entity disambiguation (via description) batch_69c71c95e28081909494e8bffd7a8ff9 completed March 28, 2026, 12:11 a.m.
Created at: March 27, 2026, 2:16 p.m.