Triple

T17295070
Position Surface form Disambiguated ID Type / Status
Subject Mattagami River E419885 entity
Predicate hasHydroelectricStation P15311 FINISHED
Object Harmon Generating Station
Harmon Generating Station is a hydroelectric power plant located on the Mattagami River in Ontario, Canada, that generates electricity from the river’s flow.
 E1262768 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: Harmon Generating Station | Statement: [Mattagami River, hasHydroelectricStation, Harmon Generating Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Harmon Generating Station
Context triple: [Mattagami River, hasHydroelectricStation, Harmon Generating Station]
  • A. Kelsey Generating Station
    Kelsey Generating Station is a hydroelectric power plant located on the Nelson River in northern Manitoba, Canada, that generates electricity for the provincial grid.
  • B. R. H. Saunders Generating Station
    R. H. Saunders Generating Station is a major hydroelectric power facility on the St. Lawrence River that forms part of the binational Moses–Saunders Power Dam complex between Canada and the United States.
  • C. Alexander Generating Station
    Alexander Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
  • D. Eddystone Generating Station
    Eddystone Generating Station is a large fossil-fuel power plant located along the Delaware River in Eddystone, Pennsylvania, known for its significant role in regional electricity generation.
  • E. Beaumont Generating Station
    Beaumont Generating Station is a hydroelectric power plant located on the Saint-Maurice River in Quebec, Canada, contributing to the region’s renewable electricity generation.
  • 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: Harmon Generating Station
Triple: [Mattagami River, hasHydroelectricStation, Harmon Generating Station]
Generated description
Harmon 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: Harmon Generating Station
Target entity description: Harmon Generating Station is a hydroelectric power plant located on the Mattagami River in Ontario, Canada, that generates electricity from the river’s flow.
  • A. Kelsey Generating Station
    Kelsey Generating Station is a hydroelectric power plant located on the Nelson River in northern Manitoba, Canada, that generates electricity for the provincial grid.
  • B. R. H. Saunders Generating Station
    R. H. Saunders Generating Station is a major hydroelectric power facility on the St. Lawrence River that forms part of the binational Moses–Saunders Power Dam complex between Canada and the United States.
  • C. Alexander Generating Station
    Alexander Generating Station is a hydroelectric power facility located on the Nipigon River in Ontario, Canada, that generates electricity from the river’s flow.
  • D. Eddystone Generating Station
    Eddystone Generating Station is a large fossil-fuel power plant located along the Delaware River in Eddystone, Pennsylvania, known for its significant role in regional electricity generation.
  • E. Beaumont Generating Station
    Beaumont Generating Station is a hydroelectric power plant located on the Saint-Maurice River in Quebec, Canada, contributing to the region’s renewable electricity generation.
  • 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_6a018c407fe8819095b16b171f29cf1b completed May 11, 2026, 7:58 a.m.
NEDg Description generation batch_6a018cf93d44819083defe64923320d5 completed May 11, 2026, 8:02 a.m.
NED2 Entity disambiguation (via description) batch_6a018e958cf08190b265c8a3bfd44512 completed May 11, 2026, 8:08 a.m.
Created at: April 10, 2026, 5:40 a.m.