Triple

T303329
Position Surface form Disambiguated ID Type / Status
Subject Hoover Dam E6243 entity
Predicate partOf P40 FINISHED
Object Boulder Canyon Project
The Boulder Canyon Project was a major U.S. federal public works initiative of the early 20th century that authorized construction of Hoover Dam and related infrastructure to control the Colorado River, provide irrigation water, and generate hydroelectric power.
E6243 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: Boulder Canyon Project | Statement: [Hoover Dam, partOf, Boulder Canyon Project]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Boulder Canyon Project
Context triple: [Hoover Dam, partOf, Boulder Canyon Project]
  • A. Hoover Dam
    Hoover Dam is a massive concrete arch-gravity dam on the Colorado River, renowned as a landmark feat of 20th-century American engineering and a major source of hydroelectric power and water management in the Southwest.
  • B. Grand Coulee Dam
    Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
  • C. Central Valley Project
    The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
  • D. State Water Project
    The State Water Project is a massive California water storage and delivery system that transports water from northern sources to agricultural, urban, and industrial users across the state, including the Central Valley.
  • E. Bureau of Reclamation
    The Bureau of Reclamation is a U.S. federal agency responsible for managing water resources and operating dams, reservoirs, and irrigation projects primarily in the western United States.
  • 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: Boulder Canyon Project
Triple: [Hoover Dam, partOf, Boulder Canyon Project]
Generated description
The Boulder Canyon Project was a major U.S. federal public works initiative of the early 20th century that authorized construction of Hoover Dam and related infrastructure to control the Colorado River, provide irrigation water, and generate hydroelectric power.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Boulder Canyon Project
Target entity description: The Boulder Canyon Project was a major U.S. federal public works initiative of the early 20th century that authorized construction of Hoover Dam and related infrastructure to control the Colorado River, provide irrigation water, and generate hydroelectric power.
  • A. Hoover Dam chosen
    Hoover Dam is a massive concrete arch-gravity dam on the Colorado River, renowned as a landmark feat of 20th-century American engineering and a major source of hydroelectric power and water management in the Southwest.
  • B. Grand Coulee Dam
    Grand Coulee Dam is a massive concrete gravity dam on the Columbia River in Washington State, renowned as one of the largest power-producing facilities in the United States and a landmark of New Deal–era infrastructure.
  • C. Central Valley Project
    The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
  • D. State Water Project
    The State Water Project is a massive California water storage and delivery system that transports water from northern sources to agricultural, urban, and industrial users across the state, including the Central Valley.
  • E. Bureau of Reclamation
    The Bureau of Reclamation is a U.S. federal agency responsible for managing water resources and operating dams, reservoirs, and irrigation projects primarily in the western United States.
  • F. None of above.

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_69a2e79230508190b912ecb555aae17e completed Feb. 28, 2026, 1:03 p.m.
NER Named-entity recognition batch_69a2ea0eec708190a0af9b27bf1f016a completed Feb. 28, 2026, 1:13 p.m.
NED1 Entity disambiguation (via context triple) batch_69a3c8b480388190b5f7f9e11479de91 completed March 1, 2026, 5:03 a.m.
NEDg Description generation batch_69a3c91e8b88819099e54b7869cc293d completed March 1, 2026, 5:05 a.m.
NED2 Entity disambiguation (via description) batch_69a3c9731df881908e342ace3635b5cc completed March 1, 2026, 5:06 a.m.
Created at: Feb. 28, 2026, 1:06 p.m.