Triple

T6103819
Position Surface form Disambiguated ID Type / Status
Subject Hetch Hetchy Valley E136067 entity
Predicate waterBody P1778 FINISHED
Object Hetch Hetchy Reservoir
Hetch Hetchy Reservoir is a man-made lake in Yosemite National Park that stores and supplies drinking water and hydroelectric power to the San Francisco Bay Area.
E136067 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: Hetch Hetchy Reservoir | Statement: [Hetch Hetchy Valley, waterBody, Hetch Hetchy Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy Reservoir
Context triple: [Hetch Hetchy Valley, waterBody, Hetch Hetchy Reservoir]
  • A. Pepacton Reservoir
    Pepacton Reservoir is a large man-made lake in the Catskill Mountains of New York that serves as a major component of New York City's drinking water supply system.
  • B. Hetch Hetchy Regional Water System
    The Hetch Hetchy Regional Water System is a major water supply and delivery network that provides high-quality drinking water from Sierra Nevada sources to San Francisco and numerous Bay Area communities.
  • C. Hetch Hetchy Valley
    Hetch Hetchy Valley is a glacially carved valley in Yosemite National Park, California, best known for its scenic granite cliffs and for being largely submerged by the Hetch Hetchy Reservoir that supplies water to the San Francisco Bay Area.
  • D. Calaveras Reservoir
    Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
  • E. Pardee Reservoir
    Pardee Reservoir is a man-made lake in the Sierra Nevada foothills of California that serves as a major water storage and supply source for the East Bay region.
  • 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: Hetch Hetchy Reservoir
Triple: [Hetch Hetchy Valley, waterBody, Hetch Hetchy Reservoir]
Generated description
Hetch Hetchy Reservoir is a man-made lake in Yosemite National Park that stores and supplies drinking water and hydroelectric power to the San Francisco Bay Area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy Reservoir
Target entity description: Hetch Hetchy Reservoir is a man-made lake in Yosemite National Park that stores and supplies drinking water and hydroelectric power to the San Francisco Bay Area.
  • A. Pepacton Reservoir
    Pepacton Reservoir is a large man-made lake in the Catskill Mountains of New York that serves as a major component of New York City's drinking water supply system.
  • B. Hetch Hetchy Regional Water System
    The Hetch Hetchy Regional Water System is a major water supply and delivery network that provides high-quality drinking water from Sierra Nevada sources to San Francisco and numerous Bay Area communities.
  • C. Hetch Hetchy Valley chosen
    Hetch Hetchy Valley is a glacially carved valley in Yosemite National Park, California, best known for its scenic granite cliffs and for being largely submerged by the Hetch Hetchy Reservoir that supplies water to the San Francisco Bay Area.
  • D. Calaveras Reservoir
    Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
  • E. Pardee Reservoir
    Pardee Reservoir is a man-made lake in the Sierra Nevada foothills of California that serves as a major water storage and supply source for the East Bay region.
  • 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_69c0087dee9881909e3655be88208c01 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c05b3dbc6c8190b9e3d81e6ca9eeb8 completed March 22, 2026, 9:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69c518d771408190bcff32f692c2b9fd completed March 26, 2026, 11:30 a.m.
NEDg Description generation batch_69c52d745a3081909435f227a4f46317 completed March 26, 2026, 12:58 p.m.
NED2 Entity disambiguation (via description) batch_69c59088b4b48190a31435c37d83f287 completed March 26, 2026, 8:01 p.m.
Created at: March 22, 2026, 4:13 p.m.