Triple

T6103841
Position Surface form Disambiguated ID Type / Status
Subject Hetch Hetchy Valley E136067 entity
Predicate subjectOf P38 FINISHED
Object Hetch Hetchy water rights controversy
The Hetch Hetchy water rights controversy was an early 20th-century environmental and political battle over damming a Yosemite valley to supply water to San Francisco, helping to define the modern American conservation movement.
E569165 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 water rights controversy | Statement: [Hetch Hetchy Valley, subjectOf, Hetch Hetchy water rights controversy]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy water rights controversy
Context triple: [Hetch Hetchy Valley, subjectOf, Hetch Hetchy water rights controversy]
  • A. Owens Valley water wars
    The Owens Valley water wars were a series of early 20th-century conflicts in California over Los Angeles’ diversion of water from the Owens Valley, which devastated local agriculture and became a landmark case in Western water politics.
  • 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. Mono Lake water rights litigation
    Mono Lake water rights litigation refers to the series of landmark legal battles over Los Angeles’s diversion of water from the Mono Basin, which reshaped California water law by strengthening public trust protections for environmental resources.
  • D. Truckee-Carson-Pyramid Lake Water Rights Settlement Act of 1990
    The Truckee-Carson-Pyramid Lake Water Rights Settlement Act of 1990 is a U.S. federal law that resolves long-standing water allocation disputes in the Truckee, Carson, and Pyramid Lake basins, particularly balancing tribal, agricultural, and environmental water rights in Nevada and California.
  • E. Boulder Canyon Project Act
    The Boulder Canyon Project Act is a 1928 U.S. federal law that authorized the construction of Hoover Dam and the All-American Canal, enabling large-scale water storage and hydroelectric power development on the Colorado River.
  • 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 water rights controversy
Triple: [Hetch Hetchy Valley, subjectOf, Hetch Hetchy water rights controversy]
Generated description
The Hetch Hetchy water rights controversy was an early 20th-century environmental and political battle over damming a Yosemite valley to supply water to San Francisco, helping to define the modern American conservation movement.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy water rights controversy
Target entity description: The Hetch Hetchy water rights controversy was an early 20th-century environmental and political battle over damming a Yosemite valley to supply water to San Francisco, helping to define the modern American conservation movement.
  • A. Owens Valley water wars
    The Owens Valley water wars were a series of early 20th-century conflicts in California over Los Angeles’ diversion of water from the Owens Valley, which devastated local agriculture and became a landmark case in Western water politics.
  • 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. Mono Lake water rights litigation
    Mono Lake water rights litigation refers to the series of landmark legal battles over Los Angeles’s diversion of water from the Mono Basin, which reshaped California water law by strengthening public trust protections for environmental resources.
  • D. Truckee-Carson-Pyramid Lake Water Rights Settlement Act of 1990
    The Truckee-Carson-Pyramid Lake Water Rights Settlement Act of 1990 is a U.S. federal law that resolves long-standing water allocation disputes in the Truckee, Carson, and Pyramid Lake basins, particularly balancing tribal, agricultural, and environmental water rights in Nevada and California.
  • E. Boulder Canyon Project Act
    The Boulder Canyon Project Act is a 1928 U.S. federal law that authorized the construction of Hoover Dam and the All-American Canal, enabling large-scale water storage and hydroelectric power development on the Colorado River.
  • 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_69c0087dee9881909e3655be88208c01 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c05b3f8e5481909e85a60aaf319f66 completed March 22, 2026, 9:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69c12553f1d4819096de40514ef4d2cb completed March 23, 2026, 11:34 a.m.
NEDg Description generation batch_69c125d888cc819092b765d47f1d9f9f completed March 23, 2026, 11:36 a.m.
NED2 Entity disambiguation (via description) batch_69c126f308988190ab6cb6c79ea12877 completed March 23, 2026, 11:41 a.m.
Created at: March 22, 2026, 4:13 p.m.