Triple
T5554518
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | O'Shaughnessy Dam |
E145604
|
entity |
| Predicate | associatedHydroelectricSystem |
P15311
|
FINISHED |
| Object | Hetch Hetchy Power System |
E428593
|
NE FINISHED |
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: Hetch Hetchy Power System | Statement: [O'Shaughnessy Dam, associatedHydroelectricSystem, Hetch Hetchy Power System]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy Power System Context triple: [O'Shaughnessy Dam, associatedHydroelectricSystem, 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.
Pepacton Reservoir
Pepacton Reservoir is a large man-made lake in the Catskill Mountains of New York that serves as a major component of New York City's drinking water supply system.
-
C.
Devil Canyon Powerplant
Devil Canyon Powerplant is a hydroelectric generating facility in Southern California that produces power as part of the State Water Project’s water conveyance and energy system.
-
D.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
-
E.
Salt River Project
Salt River Project is a major public utility in Arizona that provides electricity and water to the Phoenix metropolitan area through a combination of power generation, transmission, and irrigation services.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: associatedHydroelectricSystem Context triple: [O'Shaughnessy Dam, associatedHydroelectricSystem, Hetch Hetchy Power System]
-
A.
hasHydroelectricProject
chosen
Indicates that an entity is associated with, operates, or contains a hydroelectric power generation project.
-
B.
hydroelectricStationCommissioned
Indicates that a hydroelectric power station has been officially brought into operation or service on a specific date or in a specific context.
-
C.
isHydroelectricProjectOn
Indicates that a hydroelectric project is located on or situated along a specified water body or site.
-
D.
hydroelectricStationCapacity
Indicates the maximum amount of electrical power that a hydroelectric station is capable of producing under specified conditions.
-
E.
hasHydroelectricProjectOperator
Indicates that a hydroelectric project is operated or managed by a specified operator entity.
- F. None of above.
Provenance (4 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_69c008fcaf788190bafa02a1917ee73b |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c01ffaf4fc8190bf27014d21954a70 |
completed | March 22, 2026, 4:59 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c04d01a9948190a033947c7c031e04 |
completed | March 22, 2026, 8:11 p.m. |
| PD | Predicate disambiguation | batch_69c01b10bbf8819098655839c03b7832 |
completed | March 22, 2026, 4:38 p.m. |
Created at: March 22, 2026, 3:36 p.m.