Triple

T2319666
Position Surface form Disambiguated ID Type / Status
Subject Nipigon River E51148 entity
Predicate hydroelectricOperator P15311 FINISHED
Object Ontario Power Generation
Ontario Power Generation is a large, government-owned electricity producer in Ontario, Canada, primarily known for operating nuclear, hydroelectric, and other power generating stations across the province.
E255688 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: Ontario Power Generation | Statement: [Nipigon River, hydroelectricOperator, Ontario Power Generation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ontario Power Generation
Context triple: [Nipigon River, hydroelectricOperator, Ontario Power Generation]
  • A. Newfoundland and Labrador Hydro
    Newfoundland and Labrador Hydro is a provincial Crown-owned electric utility in Newfoundland and Labrador responsible for generating and transmitting electricity across the province.
  • B. Hydro-Québec
    Hydro-Québec is a Canadian public utility company owned by the government of Quebec that generates, transmits, and distributes electricity, primarily from hydroelectric power.
  • C. Atomic Energy of Canada Limited
    Atomic Energy of Canada Limited is a Canadian federal Crown corporation responsible for nuclear energy research, development, and technology, including the design of CANDU reactors.
  • D. Exelon
    Exelon is a major American energy company and utility services holding corporation, known for operating one of the largest fleets of nuclear power plants in the United States.
  • 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.
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: Ontario Power Generation
Triple: [Nipigon River, hydroelectricOperator, Ontario Power Generation]
Generated description
Ontario Power Generation is a large, government-owned electricity producer in Ontario, Canada, primarily known for operating nuclear, hydroelectric, and other power generating stations across the province.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ontario Power Generation
Target entity description: Ontario Power Generation is a large, government-owned electricity producer in Ontario, Canada, primarily known for operating nuclear, hydroelectric, and other power generating stations across the province.
  • A. Newfoundland and Labrador Hydro
    Newfoundland and Labrador Hydro is a provincial Crown-owned electric utility in Newfoundland and Labrador responsible for generating and transmitting electricity across the province.
  • B. Hydro-Québec
    Hydro-Québec is a Canadian public utility company owned by the government of Quebec that generates, transmits, and distributes electricity, primarily from hydroelectric power.
  • C. Atomic Energy of Canada Limited
    Atomic Energy of Canada Limited is a Canadian federal Crown corporation responsible for nuclear energy research, development, and technology, including the design of CANDU reactors.
  • D. Exelon
    Exelon is a major American energy company and utility services holding corporation, known for operating one of the largest fleets of nuclear power plants in the United States.
  • 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
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hydroelectricOperator
Context triple: [Nipigon River, hydroelectricOperator, Ontario Power Generation]
  • A. hydroelectricStationCommissioned
    Indicates that a hydroelectric power station has been officially brought into operation or service on a specific date or in a specific context.
  • B. hydroelectricStationCapacity
    Indicates the maximum amount of electrical power that a hydroelectric station is capable of producing under specified conditions.
  • C. hasHydroelectricProject chosen
    Indicates that an entity is associated with, operates, or contains a hydroelectric power generation project.
  • D. hydropowerPotential
    Indicates the amount of energy that could be generated from water resources at a given site or region under specified conditions.
  • E. typeOfCanalOperated
    Indicates that one entity operates or manages a canal of the specified type.
  • 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_69a88b074b908190ae983dbca7757d88 completed March 4, 2026, 7:41 p.m.
NER Named-entity recognition batch_69abc685f05481909c863b29d1f6bacd completed March 7, 2026, 6:32 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae8966cc0c819092ad299645b0aa71 completed March 9, 2026, 8:48 a.m.
NEDg Description generation batch_69ae8b3693c481909c3f5f28c9b55e92 completed March 9, 2026, 8:56 a.m.
NED2 Entity disambiguation (via description) batch_69ae8bab9a3c8190aac39006ac3744a9 completed March 9, 2026, 8:58 a.m.
PD Predicate disambiguation batch_69abc5909cc48190aab257313542dc49 completed March 7, 2026, 6:28 a.m.
Created at: March 4, 2026, 7:49 p.m.