Triple

T17596829
Position Surface form Disambiguated ID Type / Status
Subject Hetch Hetchy Power System E428593 entity
Predicate hasPart P35 FINISHED
Object Moccasin Low-Head Generating Plant — 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: Moccasin Low-Head Generating Plant | Statement: [Hetch Hetchy Power System, hasPart, Moccasin Low-Head Generating Plant]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Moccasin Low-Head Generating Plant
Context triple: [Hetch Hetchy Power System, hasPart, Moccasin Low-Head Generating Plant]
  • A. Stevenson Dam Hydroelectric Plant
    Stevenson Dam Hydroelectric Plant is a hydroelectric power station in Connecticut that generates electricity using water impounded by the Stevenson Dam on the Housatonic River.
  • B. Pullinque Hydroelectric Plant
    Pullinque Hydroelectric Plant is a hydroelectric power facility in southern Chile that generates electricity using water resources associated with Pullinque Lake.
  • 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. Denison Dam Power Plant
    Denison Dam Power Plant is a hydroelectric generating facility located at Denison Dam on the Red River, producing renewable electricity from the dam’s reservoir outflows.
  • E. Narrows Hydroelectric Plant
    The Narrows Hydroelectric Plant is a hydroelectric power station that generates electricity using water impounded by Narrows Dam.
  • 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: Moccasin Low-Head Generating Plant
Target entity description: The Moccasin Low-Head Generating Plant is a hydroelectric power facility in California that forms part of the Hetch Hetchy system supplying electricity to the San Francisco Bay Area.
  • A. Stevenson Dam Hydroelectric Plant
    Stevenson Dam Hydroelectric Plant is a hydroelectric power station in Connecticut that generates electricity using water impounded by the Stevenson Dam on the Housatonic River.
  • B. Pullinque Hydroelectric Plant
    Pullinque Hydroelectric Plant is a hydroelectric power facility in southern Chile that generates electricity using water resources associated with Pullinque Lake.
  • 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. Denison Dam Power Plant
    Denison Dam Power Plant is a hydroelectric generating facility located at Denison Dam on the Red River, producing renewable electricity from the dam’s reservoir outflows.
  • E. Narrows Hydroelectric Plant
    The Narrows Hydroelectric Plant is a hydroelectric power station that generates electricity using water impounded by Narrows Dam.
  • F. None of above. chosen

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_69d889e1030481909950e140c63255b9 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e469ec335c8190abcaff700cfff23b completed April 19, 2026, 5:36 a.m.
Created at: April 10, 2026, 5:51 a.m.