Triple

T16926236
Position Surface form Disambiguated ID Type / Status
Subject Southeastern United States electric grid E410579 entity
Predicate hasMajorHydroSystem P124776 FINISHED
Object Tennessee Valley Authority hydroelectric system E136 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: Tennessee Valley Authority hydroelectric system | Statement: [Southeastern United States electric grid, hasMajorHydroSystem, Tennessee Valley Authority hydroelectric system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tennessee Valley Authority hydroelectric system
Context triple: [Southeastern United States electric grid, hasMajorHydroSystem, Tennessee Valley Authority hydroelectric system]
  • A. 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.
  • B. 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.
  • C. Tennessee Valley Authority chosen
    The Tennessee Valley Authority is a federally owned U.S. corporation created during the New Deal to provide regional economic development, flood control, and electricity generation in the Tennessee Valley.
  • D. Santee Cooper hydropower project
    The Santee Cooper hydropower project is a large New Deal–era public works development in South Carolina that created lakes and dams to generate hydroelectric power and support regional economic growth.
  • E. Watts Bar Dam
    Watts Bar Dam is a Tennessee Valley Authority hydroelectric and navigation dam on the Tennessee River in eastern Tennessee.
  • 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: hasMajorHydroSystem
Context triple: [Southeastern United States electric grid, hasMajorHydroSystem, Tennessee Valley Authority hydroelectric system]
  • A. hasMajorRiverSystem
    Indicates that an entity possesses or is traversed by a primary, large-scale river network that significantly characterizes its hydrology or geography.
  • B. hasHydrologicalRegime
    Indicates that one entity (typically a water body or hydrological system) is characterized by, or associated with, a particular pattern or regime of water flow and levels over time.
  • C. hasMajorReservoir
    Indicates that an entity possesses or is associated with a primary or significant reservoir (such as a large storage or accumulation of a resource).
  • D. hasMajorCityOnBasin
    Indicates that a major city is located on or within the drainage basin of a specified water system.
  • E. hasMajorLake
    Indicates that a geographic region or area contains at least one significant lake within its boundaries.
  • F. None of above. chosen

Provenance (5 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_69d886c7b1e481908c3766dfa8c13458 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3cdf2dcd881909798bd245e18c599 completed April 18, 2026, 6:31 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00cfd8a88c8190adda386b62fe543c completed May 10, 2026, 6:35 p.m.
PD Predicate disambiguation batch_69e32b982f548190b08414d55810de19 completed April 18, 2026, 6:58 a.m.
PDg Predicate description generation batch_69e32d7aae948190bc238d765795688c completed April 18, 2026, 7:06 a.m.
Created at: April 10, 2026, 5:30 a.m.