Triple

T21485100
Position Surface form Disambiguated ID Type / Status
Subject Flatiron Reservoir E530096 entity
Predicate outflow P967 FINISHED
Object Flatiron Penstocks
Flatiron Penstocks are large conduits that carry water from Flatiron Reservoir to downstream hydroelectric and water delivery facilities as part of a managed water infrastructure system.
E1488071 NE FINISHED

How this triple was built (4 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: Flatiron Penstocks | Statement: [Flatiron Reservoir, outflow, Flatiron Penstocks]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Flatiron Penstocks
Context triple: [Flatiron Reservoir, outflow, Flatiron Penstocks]
  • A. Kirkwood Penstock
    Kirkwood Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric power network, channeling high-pressure flows to generate electricity.
  • B. Moccasin Penstock
    Moccasin Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric system that channels high-pressure flows to generate power at the Moccasin facilities.
  • C. Catskill Aqueduct
    The Catskill Aqueduct is a major component of New York City's water supply system, transporting drinking water from the Catskill Mountains to the city and its reservoirs.
  • D. Store Street Aqueduct
    Store Street Aqueduct is a historic cast-iron waterway structure in Manchester, England, carrying the Ashton Canal over Store Street and regarded as one of the earliest surviving examples of its kind.
  • E. Palisades Dam
    Palisades Dam is a large earthfill dam in eastern Idaho that provides irrigation water storage, hydroelectric power, and flood control on the upper Snake River.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Flatiron Penstocks
Triple: [Flatiron Reservoir, outflow, Flatiron Penstocks]
Generated description
Flatiron Penstocks are large conduits that carry water from Flatiron Reservoir to downstream hydroelectric and water delivery facilities as part of a managed water infrastructure system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Flatiron Penstocks
Target entity description: Flatiron Penstocks are large conduits that carry water from Flatiron Reservoir to downstream hydroelectric and water delivery facilities as part of a managed water infrastructure system.
  • A. Kirkwood Penstock
    Kirkwood Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric power network, channeling high-pressure flows to generate electricity.
  • B. Moccasin Penstock
    Moccasin Penstock is a major water-conveyance structure within California’s Hetch Hetchy hydroelectric system that channels high-pressure flows to generate power at the Moccasin facilities.
  • C. Catskill Aqueduct
    The Catskill Aqueduct is a major component of New York City's water supply system, transporting drinking water from the Catskill Mountains to the city and its reservoirs.
  • D. Store Street Aqueduct
    Store Street Aqueduct is a historic cast-iron waterway structure in Manchester, England, carrying the Ashton Canal over Store Street and regarded as one of the earliest surviving examples of its kind.
  • E. Palisades Dam
    Palisades Dam is a large earthfill dam in eastern Idaho that provides irrigation water storage, hydroelectric power, and flood control on the upper Snake River.
  • 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_69e0c45acc3881908e38d3f28964152b completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69e9ea365a8481909635f614b23e751f completed April 23, 2026, 9:45 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09e1339bbc81908aa0c398a0c106a4 completed May 17, 2026, 3:39 p.m.
NEDg Description generation batch_6a09e2913c748190b6a14cc336cf843c completed May 17, 2026, 3:45 p.m.
NED2 Entity disambiguation (via description) batch_6a09e2fce69c81909d038daa7334d4a7 completed May 17, 2026, 3:47 p.m.
Created at: April 16, 2026, 6:21 p.m.