Triple

T17295076
Position Surface form Disambiguated ID Type / Status
Subject Mattagami River E419885 entity
Predicate hasHydroelectricStation P15311 FINISHED
Object Kettle Rapids Generating Station
Kettle Rapids Generating Station is a hydroelectric power plant located on the Mattagami River in Ontario, Canada, that generates electricity from the river’s flow.
 E1271405 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: Kettle Rapids Generating Station | Statement: [Mattagami River, hasHydroelectricStation, Kettle Rapids Generating Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kettle Rapids Generating Station
Context triple: [Mattagami River, hasHydroelectricStation, Kettle Rapids Generating Station]
  • A. 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.
  • B. Pine Portage Generating Station
    Pine Portage Generating Station is a hydroelectric power plant located on the Nipigon River in Ontario, Canada, that generates electricity by harnessing the river’s flow.
  • C. 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.
  • D. 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.
  • E. Tobique Hydroelectric Generating Station
    Tobique Hydroelectric Generating Station is a hydroelectric power plant located on the Tobique River in New Brunswick, Canada, that generates electricity by harnessing the river’s flow.
  • 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: Kettle Rapids Generating Station
Triple: [Mattagami River, hasHydroelectricStation, Kettle Rapids Generating Station]
Generated description
Kettle Rapids Generating Station is a hydroelectric power plant located on the Mattagami River in Ontario, Canada, that generates electricity from the river’s flow.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Kettle Rapids Generating Station
Target entity description: Kettle Rapids Generating Station is a hydroelectric power plant located on the Mattagami River in Ontario, Canada, that generates electricity from the river’s flow.
  • A. 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.
  • B. Pine Portage Generating Station
    Pine Portage Generating Station is a hydroelectric power plant located on the Nipigon River in Ontario, Canada, that generates electricity by harnessing the river’s flow.
  • C. 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.
  • D. 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.
  • E. Tobique Hydroelectric Generating Station
    Tobique Hydroelectric Generating Station is a hydroelectric power plant located on the Tobique River in New Brunswick, Canada, that generates electricity by harnessing the river’s flow.
  • 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_69d886db32608190a61e18862c5a8af6 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e437875b208190bcf0df2ded546257 completed April 19, 2026, 2:01 a.m.
NED1 Entity disambiguation (via context triple) batch_6a01c1e9985c8190861ddd9eced1414b completed May 11, 2026, 11:47 a.m.
NEDg Description generation batch_6a01c2e2f3988190af955c99d5dd7c90 completed May 11, 2026, 11:52 a.m.
NED2 Entity disambiguation (via description) batch_6a01c330dbe88190ab9a594523653a10 completed May 11, 2026, 11:53 a.m.
Created at: April 10, 2026, 5:40 a.m.