Triple
T22220182
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fontana Lake |
E549187
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Tennessee Valley Authority reservoir system |
—
|
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: Tennessee Valley Authority reservoir system | Statement: [Fontana Lake, partOf, Tennessee Valley Authority reservoir system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tennessee Valley Authority reservoir system Context triple: [Fontana Lake, partOf, Tennessee Valley Authority reservoir system]
-
A.
Tennessee River navigation system
The Tennessee River navigation system is an integrated network of dams, locks, and reservoirs managed primarily by the Tennessee Valley Authority to enable commercial navigation, flood control, and hydroelectric power generation along the Tennessee River.
-
B.
Tennessee Valley Authority Norris Dam project
The Tennessee Valley Authority Norris Dam project was a major New Deal-era hydroelectric and flood-control initiative on the Clinch River in Tennessee that created Norris Dam, Norris Lake, and surrounding recreational and conservation areas.
-
C.
Savannah River hydropower system
The Savannah River hydropower system is a network of dams and related infrastructure on the Savannah River that generates hydroelectric power while supporting flood control, navigation, and water supply in the surrounding region.
-
D.
Yazoo Backwater Project
The Yazoo Backwater Project is a long-debated U.S. Army Corps of Engineers flood-control initiative in Mississippi’s Yazoo River basin, best known for its controversial proposed pumping station and its environmental and political disputes.
-
E.
Coosa River reservoir system
The Coosa River reservoir system is a network of man-made lakes and dams along the Coosa River in Alabama and Georgia, used for hydroelectric power generation, flood control, recreation, and water supply.
- 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: Tennessee Valley Authority reservoir system Target entity description: The Tennessee Valley Authority reservoir system is an interconnected network of man-made lakes and dams across the Tennessee River watershed, managed to provide hydroelectric power, flood control, navigation, and recreational opportunities in the southeastern United States.
-
A.
Tennessee River navigation system
chosen
The Tennessee River navigation system is an integrated network of dams, locks, and reservoirs managed primarily by the Tennessee Valley Authority to enable commercial navigation, flood control, and hydroelectric power generation along the Tennessee River.
-
B.
Tennessee Valley Authority Norris Dam project
The Tennessee Valley Authority Norris Dam project was a major New Deal-era hydroelectric and flood-control initiative on the Clinch River in Tennessee that created Norris Dam, Norris Lake, and surrounding recreational and conservation areas.
-
C.
Savannah River hydropower system
The Savannah River hydropower system is a network of dams and related infrastructure on the Savannah River that generates hydroelectric power while supporting flood control, navigation, and water supply in the surrounding region.
-
D.
Yazoo Backwater Project
The Yazoo Backwater Project is a long-debated U.S. Army Corps of Engineers flood-control initiative in Mississippi’s Yazoo River basin, best known for its controversial proposed pumping station and its environmental and political disputes.
-
E.
Coosa River reservoir system
The Coosa River reservoir system is a network of man-made lakes and dams along the Coosa River in Alabama and Georgia, used for hydroelectric power generation, flood control, recreation, and water supply.
- 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_69e11e403d6481909a94d0aaf157f6ef |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f12b8fa3d081908db0a0556b009d8f |
completed | April 28, 2026, 9:50 p.m. |
Created at: April 16, 2026, 8:37 p.m.