Triple

T21889858
Position Surface form Disambiguated ID Type / Status
Subject Kelani Ganga E540509 entity
Predicate hasHydropowerPlant P15311 FINISHED
Object Norton Bridge Power Station
Norton Bridge Power Station is a hydroelectric power facility in Sri Lanka that harnesses the flow of the Kelani River to generate electricity for the national grid.
 E1507142 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: Norton Bridge Power Station | Statement: [Kelani Ganga, hasHydropowerPlant, Norton Bridge Power Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Norton Bridge Power Station
Context triple: [Kelani Ganga, hasHydropowerPlant, Norton Bridge Power Station]
  • A. Butlers Gorge Power Station
    Butlers Gorge Power Station is a hydroelectric power facility in Tasmania, Australia, that generates electricity using water from the Butlers Gorge Dam.
  • B. Marchwood Power Station
    Marchwood Power Station is a modern gas-fired power plant in Hampshire, England, that generates electricity for the UK national grid.
  • C. Wivenhoe Power Station
    Wivenhoe Power Station is a pumped-storage hydroelectric power facility in Queensland, Australia, used to generate electricity and provide grid stability by storing and releasing water from Wivenhoe Dam.
  • D. Liddell Power Station
    Liddell Power Station is a large coal-fired power plant in New South Wales, Australia, long serving as a major source of electricity generation before its planned closure as part of the country’s energy transition.
  • E. Kendal Power Station
    Kendal Power Station is one of South Africa’s largest coal-fired power plants, supplying significant electricity to the national grid.
  • 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: Norton Bridge Power Station
Triple: [Kelani Ganga, hasHydropowerPlant, Norton Bridge Power Station]
Generated description
Norton Bridge Power Station is a hydroelectric power facility in Sri Lanka that harnesses the flow of the Kelani River to generate electricity for the national grid.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Norton Bridge Power Station
Target entity description: Norton Bridge Power Station is a hydroelectric power facility in Sri Lanka that harnesses the flow of the Kelani River to generate electricity for the national grid.
  • A. Butlers Gorge Power Station
    Butlers Gorge Power Station is a hydroelectric power facility in Tasmania, Australia, that generates electricity using water from the Butlers Gorge Dam.
  • B. Marchwood Power Station
    Marchwood Power Station is a modern gas-fired power plant in Hampshire, England, that generates electricity for the UK national grid.
  • C. Wivenhoe Power Station
    Wivenhoe Power Station is a pumped-storage hydroelectric power facility in Queensland, Australia, used to generate electricity and provide grid stability by storing and releasing water from Wivenhoe Dam.
  • D. Liddell Power Station
    Liddell Power Station is a large coal-fired power plant in New South Wales, Australia, long serving as a major source of electricity generation before its planned closure as part of the country’s energy transition.
  • E. Kendal Power Station
    Kendal Power Station is one of South Africa’s largest coal-fired power plants, supplying significant electricity to the national grid.
  • 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_69e0c47a95908190ae3e19b716accb3d completed April 16, 2026, 11:14 a.m.
NER Named-entity recognition batch_69f118ef2b648190bbd78f6b3958d2ee completed April 28, 2026, 8:30 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a52bd7064819082a40b8c41240880 completed May 17, 2026, 11:43 p.m.
NEDg Description generation batch_6a0a56cc4d7081909d4d82acff2d787d completed May 18, 2026, 12:01 a.m.
NED2 Entity disambiguation (via description) batch_6a0a5775bba4819083357b518589be41 completed May 18, 2026, 12:04 a.m.
Created at: April 16, 2026, 7:06 p.m.