Triple

T11940996
Position Surface form Disambiguated ID Type / Status
Subject Keswick Reservoir E284175 entity
Predicate partOfSystem P840 FINISHED
Object Shasta–Keswick hydroelectric system
The Shasta–Keswick hydroelectric system is a network of dams, reservoirs, and power plants on the upper Sacramento River in California that generates hydroelectric power and regulates water flow for flood control and irrigation.
 E955119 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: Shasta–Keswick hydroelectric system | Statement: [Keswick Reservoir, partOfSystem, Shasta–Keswick hydroelectric system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Shasta–Keswick hydroelectric system
Context triple: [Keswick Reservoir, partOfSystem, Shasta–Keswick hydroelectric system]
  • A. Hetch Hetchy Power System
    The Hetch Hetchy Power System is a municipal hydroelectric power network that generates and delivers clean electricity to San Francisco and surrounding public facilities.
  • B. Shasta Dam
    Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
  • C. Mokelumne River Project (PG&E hydroelectric system)
    The Mokelumne River Project is a Pacific Gas and Electric Company hydroelectric system that harnesses the Mokelumne River through dams, reservoirs, and powerhouses to generate electricity and provide water storage in California.
  • D. Folsom Dam
    Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
  • E. Leaburg Dam
    Leaburg Dam is a historic hydroelectric dam on Oregon’s McKenzie River that generates power and helps regulate river flow.
  • 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: Shasta–Keswick hydroelectric system
Triple: [Keswick Reservoir, partOfSystem, Shasta–Keswick hydroelectric system]
Generated description
The Shasta–Keswick hydroelectric system is a network of dams, reservoirs, and power plants on the upper Sacramento River in California that generates hydroelectric power and regulates water flow for flood control and irrigation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Shasta–Keswick hydroelectric system
Target entity description: The Shasta–Keswick hydroelectric system is a network of dams, reservoirs, and power plants on the upper Sacramento River in California that generates hydroelectric power and regulates water flow for flood control and irrigation.
  • A. Hetch Hetchy Power System
    The Hetch Hetchy Power System is a municipal hydroelectric power network that generates and delivers clean electricity to San Francisco and surrounding public facilities.
  • B. Shasta Dam
    Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
  • C. Mokelumne River Project (PG&E hydroelectric system)
    The Mokelumne River Project is a Pacific Gas and Electric Company hydroelectric system that harnesses the Mokelumne River through dams, reservoirs, and powerhouses to generate electricity and provide water storage in California.
  • D. Folsom Dam
    Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
  • E. Leaburg Dam
    Leaburg Dam is a historic hydroelectric dam on Oregon’s McKenzie River that generates power and helps regulate river flow.
  • 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_69d6ab2db38c8190b1f0ed6663ef8ada completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d90342bb908190a019ac91a2b82f3d completed April 10, 2026, 2:03 p.m.
NED1 Entity disambiguation (via context triple) batch_69f4409a40dc81909d87c50601b98b78 completed May 1, 2026, 5:56 a.m.
NEDg Description generation batch_69f448fd4b908190a4f08619d346bec8 completed May 1, 2026, 6:32 a.m.
NED2 Entity disambiguation (via description) batch_69f44b08da6c8190ae62d8e892bf1971 completed May 1, 2026, 6:41 a.m.
Created at: April 8, 2026, 9:45 p.m.