Triple

T10833607
Position Surface form Disambiguated ID Type / Status
Subject Ontario Power Generation E255688 entity
Predicate operatesFacility P4904 FINISHED
Object DeCew Falls Generating Stations
DeCew Falls Generating Stations are a pair of historic hydroelectric power plants near St. Catharines, Ontario, that harness water from the Welland Canal to produce electricity.
 E888696 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: DeCew Falls Generating Stations | Statement: [Ontario Power Generation, operatesFacility, DeCew Falls Generating Stations]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: DeCew Falls Generating Stations
Context triple: [Ontario Power Generation, operatesFacility, DeCew Falls Generating Stations]
  • A. Cameron Falls Generating Station
    Cameron Falls Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
  • B. Muskrat Falls Generating Station
    Muskrat Falls Generating Station is a large hydroelectric power facility on the lower Churchill River in Labrador, Canada, developed to supply renewable electricity to Newfoundland and Labrador and beyond.
  • C. 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.
  • D. Seven Sisters Falls Generating Station
    Seven Sisters Falls Generating Station is a major hydroelectric power plant in Manitoba, Canada, known for harnessing the Winnipeg River to generate electricity for the region.
  • E. La Tuque Generating Station
    La Tuque Generating Station is a major hydroelectric power plant in Quebec, Canada, that harnesses the flow of the Saint-Maurice River to generate electricity.
  • 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: DeCew Falls Generating Stations
Triple: [Ontario Power Generation, operatesFacility, DeCew Falls Generating Stations]
Generated description
DeCew Falls Generating Stations are a pair of historic hydroelectric power plants near St. Catharines, Ontario, that harness water from the Welland Canal to produce electricity.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: DeCew Falls Generating Stations
Target entity description: DeCew Falls Generating Stations are a pair of historic hydroelectric power plants near St. Catharines, Ontario, that harness water from the Welland Canal to produce electricity.
  • A. Cameron Falls Generating Station
    Cameron Falls Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
  • B. Muskrat Falls Generating Station
    Muskrat Falls Generating Station is a large hydroelectric power facility on the lower Churchill River in Labrador, Canada, developed to supply renewable electricity to Newfoundland and Labrador and beyond.
  • C. 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.
  • D. Seven Sisters Falls Generating Station
    Seven Sisters Falls Generating Station is a major hydroelectric power plant in Manitoba, Canada, known for harnessing the Winnipeg River to generate electricity for the region.
  • E. La Tuque Generating Station
    La Tuque Generating Station is a major hydroelectric power plant in Quebec, Canada, that harnesses the flow of the Saint-Maurice River to generate electricity.
  • 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_69d6aa81a5d08190aa86689061d1ddd2 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d7442439dc8190af59f9c8d0637c01 completed April 9, 2026, 6:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69deb11a264c8190829ff89f0b13d063 completed April 14, 2026, 9:26 p.m.
NEDg Description generation batch_69deb4deef988190bfcf9a9529738899 completed April 14, 2026, 9:42 p.m.
NED2 Entity disambiguation (via description) batch_69deb54876ac81909222a7c25bccefe5 completed April 14, 2026, 9:44 p.m.
Created at: April 8, 2026, 9:19 p.m.