Triple

T17295072
Position Surface form Disambiguated ID Type / Status
Subject Mattagami River E419885 entity
Predicate hasHydroelectricStation P15311 FINISHED
Object Wawaitin Generating Station — 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: Wawaitin Generating Station | Statement: [Mattagami River, hasHydroelectricStation, Wawaitin Generating Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Wawaitin Generating Station
Context triple: [Mattagami River, hasHydroelectricStation, Wawaitin Generating Station]
  • A. 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.
  • 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. Kettle Generating Station
    Kettle Generating Station is a major hydroelectric power plant on Manitoba’s Nelson River that forms part of the large-scale northern generating system supplying electricity to the province.
  • 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. 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.
  • 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: Wawaitin Generating Station
Target entity description: Wawaitin Generating Station is a hydroelectric power plant located on the Mattagami River in northeastern Ontario, Canada, that generates electricity from river flow.
  • A. 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.
  • 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. Kettle Generating Station
    Kettle Generating Station is a major hydroelectric power plant on Manitoba’s Nelson River that forms part of the large-scale northern generating system supplying electricity to the province.
  • 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. 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.
  • 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_69d886db32608190a61e18862c5a8af6 completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e437875b208190bcf0df2ded546257 completed April 19, 2026, 2:01 a.m.
Created at: April 10, 2026, 5:40 a.m.