Triple
T19286912
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | South Fork Feather River |
E482336
|
entity |
| Predicate | hasHydroelectricPlant |
P15311
|
FINISHED |
| Object | Lost Creek Powerhouse |
—
|
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: Lost Creek Powerhouse | Statement: [South Fork Feather River, hasHydroelectricPlant, Lost Creek Powerhouse]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lost Creek Powerhouse Context triple: [South Fork Feather River, hasHydroelectricPlant, Lost Creek Powerhouse]
-
A.
South Fork Powerhouse
South Fork Powerhouse is a hydroelectric generating station that harnesses the flow of the South Fork Feather River to produce electricity.
-
B.
Barron Gorge Hydroelectric Power Station
Barron Gorge Hydroelectric Power Station is a historic hydroelectric facility in Queensland, Australia, that harnesses the Barron River’s flow through Barron Gorge to generate renewable electricity.
-
C.
Parker Dam powerplant
Parker Dam powerplant is a hydroelectric generating facility on the Colorado River that produces power and supports water management as part of the broader Parker-Davis Project.
-
D.
Narrows Hydroelectric Plant
The Narrows Hydroelectric Plant is a hydroelectric power station that generates electricity using water impounded by Narrows Dam.
-
E.
Glines Canyon Dam
Glines Canyon Dam was a concrete arch dam on Washington State’s Elwha River, notable for its role in hydroelectric power generation and its later removal as part of one of the largest river restoration projects in U.S. history.
- 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: Lost Creek Powerhouse Target entity description: Lost Creek Powerhouse is a hydroelectric generating facility located on California’s South Fork Feather River, producing electricity by harnessing the river’s flow.
-
A.
South Fork Powerhouse
chosen
South Fork Powerhouse is a hydroelectric generating station that harnesses the flow of the South Fork Feather River to produce electricity.
-
B.
Barron Gorge Hydroelectric Power Station
Barron Gorge Hydroelectric Power Station is a historic hydroelectric facility in Queensland, Australia, that harnesses the Barron River’s flow through Barron Gorge to generate renewable electricity.
-
C.
Parker Dam powerplant
Parker Dam powerplant is a hydroelectric generating facility on the Colorado River that produces power and supports water management as part of the broader Parker-Davis Project.
-
D.
Narrows Hydroelectric Plant
The Narrows Hydroelectric Plant is a hydroelectric power station that generates electricity using water impounded by Narrows Dam.
-
E.
Glines Canyon Dam
Glines Canyon Dam was a concrete arch dam on Washington State’s Elwha River, notable for its role in hydroelectric power generation and its later removal as part of one of the largest river restoration projects in U.S. history.
- F. None of above.
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_69d8e8cf61b0819096fe3e4107827c4e |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e5fc032f108190a89e47d1458f3f55 |
completed | April 20, 2026, 10:12 a.m. |
Created at: April 10, 2026, 1:30 p.m.