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.