Triple
T17542833
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | San Francisco Public Utilities Commission |
E427245
|
entity |
| Predicate | manages |
P86
|
FINISHED |
| Object | Hetch Hetchy Power System |
—
|
NE NERFINISHED |
How this triple was built (2 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 Power System | Statement: [San Francisco Public Utilities Commission, manages, Hetch Hetchy Power System]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy Power System Context triple: [San Francisco Public Utilities Commission, manages, Hetch Hetchy Power System]
-
A.
Hetch Hetchy Power System
chosen
The Hetch Hetchy Power System is a municipal hydroelectric power network that generates and delivers clean electricity to San Francisco and surrounding public facilities.
-
B.
Shasta–Keswick hydroelectric system
The Shasta–Keswick hydroelectric system is a network of dams, reservoirs, and power plants on the upper Sacramento River in California that generates hydroelectric power and regulates water flow for flood control and irrigation.
-
C.
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.
-
D.
Pit River hydroelectric system
The Pit River hydroelectric system is a network of dams, reservoirs, and power plants on California’s Pit River that generates hydroelectric power for the region.
-
E.
Folsom Powerplant
Folsom Powerplant is a hydroelectric generating facility in California that harnesses water from Folsom Dam to produce electricity and support regional water and flood management.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69d889df6dc081908f67dbadc03c07ee |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e4545f1fa08190870c9244d06cf5f6 |
completed | April 19, 2026, 4:04 a.m. |
Created at: April 10, 2026, 5:49 a.m.