Triple

T17596834
Position Surface form Disambiguated ID Type / Status
Subject Hetch Hetchy Power System E428593 entity
Predicate hasPart P35 FINISHED
Object Kirkwood Penstock — 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: Kirkwood Penstock | Statement: [Hetch Hetchy Power System, hasPart, Kirkwood Penstock]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kirkwood Penstock
Context triple: [Hetch Hetchy Power System, hasPart, Kirkwood Penstock]
  • A. Cannonsville Dam
    Cannonsville Dam is a large earth-fill dam in Delaware County, New York, that impounds the West Branch of the Delaware River as part of New York City's upstate water supply system.
  • B. Wilbur Dam
    Wilbur Dam is a hydroelectric dam on the Watauga River in northeastern Tennessee, known for creating Wilbur Lake and providing power and flood control.
  • C. Island Park Dam
    Island Park Dam is an earthfill dam on the Henrys Fork of the Snake River in eastern Idaho, primarily used for irrigation water storage and flood control.
  • D. Palisade Dam
    Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
  • E. Red Rock Dam
    Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
  • 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: Kirkwood Penstock
Target entity description: Kirkwood Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric power network, channeling high-pressure flows to generate electricity.
  • A. Cannonsville Dam
    Cannonsville Dam is a large earth-fill dam in Delaware County, New York, that impounds the West Branch of the Delaware River as part of New York City's upstate water supply system.
  • B. Wilbur Dam
    Wilbur Dam is a hydroelectric dam on the Watauga River in northeastern Tennessee, known for creating Wilbur Lake and providing power and flood control.
  • C. Island Park Dam
    Island Park Dam is an earthfill dam on the Henrys Fork of the Snake River in eastern Idaho, primarily used for irrigation water storage and flood control.
  • D. Palisade Dam
    Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
  • E. Red Rock Dam
    Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
  • 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.