Triple

T5887610
Position Surface form Disambiguated ID Type / Status
Subject Mahaweli River E130902 entity
Predicate majorHydropowerPlant P15311 FINISHED
Object Victoria Hydroelectric Power Station
The Victoria Hydroelectric Power Station is a major Sri Lankan hydroelectric facility located at the Victoria Dam on the Mahaweli River, known for being one of the country’s largest power-generating stations.
E554233 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: Victoria Hydroelectric Power Station | Statement: [Mahaweli River, majorHydropowerPlant, Victoria Hydroelectric Power Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Victoria Hydroelectric Power Station
Context triple: [Mahaweli River, majorHydropowerPlant, Victoria Hydroelectric Power Station]
  • A. Sir Adam Beck Hydroelectric Generating Stations
    The Sir Adam Beck Hydroelectric Generating Stations are a major complex of hydroelectric power plants on the Niagara River in Ontario, Canada, that harness the flow of Niagara Falls to generate electricity for the province.
  • B. 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.
  • 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. 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.
  • E. 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.
  • 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: Victoria Hydroelectric Power Station
Triple: [Mahaweli River, majorHydropowerPlant, Victoria Hydroelectric Power Station]
Generated description
The Victoria Hydroelectric Power Station is a major Sri Lankan hydroelectric facility located at the Victoria Dam on the Mahaweli River, known for being one of the country’s largest power-generating stations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Victoria Hydroelectric Power Station
Target entity description: The Victoria Hydroelectric Power Station is a major Sri Lankan hydroelectric facility located at the Victoria Dam on the Mahaweli River, known for being one of the country’s largest power-generating stations.
  • A. Sir Adam Beck Hydroelectric Generating Stations
    The Sir Adam Beck Hydroelectric Generating Stations are a major complex of hydroelectric power plants on the Niagara River in Ontario, Canada, that harness the flow of Niagara Falls to generate electricity for the province.
  • B. 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.
  • 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. 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.
  • E. 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.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: majorHydropowerPlant
Context triple: [Mahaweli River, majorHydropowerPlant, Victoria Hydroelectric Power Station]
  • A. hydroelectricStationCapacity
    Indicates the maximum amount of electrical power that a hydroelectric station is capable of producing under specified conditions.
  • B. majorReservoir
    Indicates that one entity functions as a primary or significant water-storage reservoir associated with another entity.
  • C. hasHydroelectricProject chosen
    Indicates that an entity is associated with, operates, or contains a hydroelectric power generation project.
  • D. hydroelectricStationCommissioned
    Indicates that a hydroelectric power station has been officially brought into operation or service on a specific date or in a specific context.
  • E. numberOfHydroelectricStations
    Indicates the quantity of hydroelectric power stations associated with a given entity.
  • 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_69c0085628dc8190b334c1b44c067efc completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c03fe07b7081909f8577ec3a9a1a8d completed March 22, 2026, 7:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0b141a93081908ad4a64f9a96dce4 completed March 23, 2026, 3:19 a.m.
NEDg Description generation batch_69c0b22d661c8190a055abd3ca6fa92f completed March 23, 2026, 3:23 a.m.
NED2 Entity disambiguation (via description) batch_69c0b608a10881908c9bca7d09a99b05 completed March 23, 2026, 3:39 a.m.
PD Predicate disambiguation batch_69c0334bdc308190ad0d7199ab975588 completed March 22, 2026, 6:22 p.m.
Created at: March 22, 2026, 3:57 p.m.