Triple
T17596836
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hetch Hetchy Power System |
E428593
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object | Moccasin Penstock |
—
|
NE NERFINISHED |
How this triple was built (3 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: Moccasin Penstock | Statement: [Hetch Hetchy Power System, hasPart, Moccasin Penstock]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Moccasin Penstock Context triple: [Hetch Hetchy Power System, hasPart, Moccasin Penstock]
-
A.
Kirkwood Penstock
Kirkwood Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric power network, channeling high-pressure flows to generate electricity.
-
B.
Narrows Dam
Narrows Dam is a hydroelectric dam located on the Yadkin River in North Carolina, forming part of a major reservoir and power-generating system in the region.
-
C.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
D.
Pathfinder Dam
Pathfinder Dam is a historic early 20th-century masonry dam in Wyoming that forms Pathfinder Reservoir and provides water storage and flood control on the North Platte River.
-
E.
Diablo Dam
Diablo Dam is a concrete arch dam in Washington State that forms Diablo Lake as part of the Skagit River Hydroelectric Project, providing power and water storage for the region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Moccasin Penstock Target entity description: Moccasin Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric system that channels high-pressure flows to generate power at the Moccasin facilities.
-
A.
Kirkwood Penstock
Kirkwood Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric power network, channeling high-pressure flows to generate electricity.
-
B.
Narrows Dam
Narrows Dam is a hydroelectric dam located on the Yadkin River in North Carolina, forming part of a major reservoir and power-generating system in the region.
-
C.
Red Rock Dam
Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
-
D.
Pathfinder Dam
Pathfinder Dam is a historic early 20th-century masonry dam in Wyoming that forms Pathfinder Reservoir and provides water storage and flood control on the North Platte River.
-
E.
Diablo Dam
Diablo Dam is a concrete arch dam in Washington State that forms Diablo Lake as part of the Skagit River Hydroelectric Project, providing power and water storage for the region.
- F. None of above. chosen
Provenance (2 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_69d889e1030481909950e140c63255b9 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e469ec335c8190abcaff700cfff23b |
completed | April 19, 2026, 5:36 a.m. |
Created at: April 10, 2026, 5:51 a.m.