Triple

T1216663
Position Surface form Disambiguated ID Type / Status
Subject Newfoundland and Labrador E26119 entity
Predicate hasMajorHydroelectricProject P15311 FINISHED
Object Churchill Falls Generating Station
Churchill Falls Generating Station is one of the world’s largest underground hydroelectric power plants, located on the Churchill River in Labrador, Canada.
E139123 NE FINISHED

How this triple was built (5 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: Churchill Falls Generating Station | Statement: [Newfoundland and Labrador, hasMajorHydroelectricProject, Churchill Falls Generating Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Churchill Falls Generating Station
Context triple: [Newfoundland and Labrador, hasMajorHydroelectricProject, Churchill Falls Generating Station]
  • A. Sir Adam Beck Hydroelectric Generating Stations
    The Sir Adam Beck Hydroelectric Generating Stations are a major complex of hydroelectric power plants on the Niagara River in Ontario, Canada, that harness the flow of Niagara Falls to generate electricity for the province.
  • B. Olidan power station
    Olidan power station is one of Sweden’s oldest large-scale hydroelectric power plants, located in Trollhättan and historically important for the country’s industrial electrification.
  • C. Glenwood Power Station
    Glenwood Power Station is an early 20th-century, now-abandoned industrial power plant on the Hudson River in Yonkers, New York, noted for its grand Beaux-Arts architecture and historic significance.
  • D. Robert Moses Niagara Power Plant
    The Robert Moses Niagara Power Plant is a major hydroelectric generating station in New York that harnesses the flow of the Niagara River to produce electricity.
  • E. Liddell Power Station
    Liddell Power Station is a large coal-fired power plant in New South Wales, Australia, long serving as a major source of electricity generation before its planned closure as part of the country’s energy transition.
  • 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: Churchill Falls Generating Station
Triple: [Newfoundland and Labrador, hasMajorHydroelectricProject, Churchill Falls Generating Station]
Generated description
Churchill Falls Generating Station is one of the world’s largest underground hydroelectric power plants, located on the Churchill River in Labrador, Canada.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Churchill Falls Generating Station
Target entity description: Churchill Falls Generating Station is one of the world’s largest underground hydroelectric power plants, located on the Churchill River in Labrador, Canada.
  • A. Sir Adam Beck Hydroelectric Generating Stations
    The Sir Adam Beck Hydroelectric Generating Stations are a major complex of hydroelectric power plants on the Niagara River in Ontario, Canada, that harness the flow of Niagara Falls to generate electricity for the province.
  • B. Olidan power station
    Olidan power station is one of Sweden’s oldest large-scale hydroelectric power plants, located in Trollhättan and historically important for the country’s industrial electrification.
  • C. Glenwood Power Station
    Glenwood Power Station is an early 20th-century, now-abandoned industrial power plant on the Hudson River in Yonkers, New York, noted for its grand Beaux-Arts architecture and historic significance.
  • D. Robert Moses Niagara Power Plant
    The Robert Moses Niagara Power Plant is a major hydroelectric generating station in New York that harnesses the flow of the Niagara River to produce electricity.
  • E. Liddell Power Station
    Liddell Power Station is a large coal-fired power plant in New South Wales, Australia, long serving as a major source of electricity generation before its planned closure as part of the country’s energy transition.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasMajorHydroelectricProject
Context triple: [Newfoundland and Labrador, hasMajorHydroelectricProject, Churchill Falls Generating Station]
  • A. hasHydroelectricProject chosen
    Indicates that an entity is associated with, operates, or contains a hydroelectric power generation project.
  • B. 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).
  • C. majorReservoir
    Indicates that one entity functions as a primary or significant water-storage reservoir associated with another entity.
  • D. hasMajorLake
    Indicates that a geographic region or area contains at least one significant lake within its boundaries.
  • E. hasMajorTownOnRiver
    Indicates that a major town is located on and directly associated with a particular river.
  • F. None of above.

Provenance (6 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_69a4948331fc8190b531ac9bec71c491 completed March 1, 2026, 7:33 p.m.
NER Named-entity recognition batch_69a4be06d6308190a44c505e6b5e8d42 completed March 1, 2026, 10:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac831fb6bc8190907f36e52489ec5c completed March 7, 2026, 7:57 p.m.
NEDg Description generation batch_69ac839076708190882fe59c80bd3e7e completed March 7, 2026, 7:59 p.m.
NED2 Entity disambiguation (via description) batch_69ac84092f088190894b3ca2a268e5c1 completed March 7, 2026, 8:01 p.m.
PD Predicate disambiguation batch_69a4bb62a7c08190a79dcb6ff72ac99b completed March 1, 2026, 10:19 p.m.
Created at: March 1, 2026, 7:46 p.m.