Triple
T21889859
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Kelani Ganga |
E540509
|
entity |
| Predicate | hasHydropowerPlant |
P15311
|
FINISHED |
| Object | Polpitiya Power 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: Polpitiya Power Station | Statement: [Kelani Ganga, hasHydropowerPlant, Polpitiya Power Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Polpitiya Power Station Context triple: [Kelani Ganga, hasHydropowerPlant, Polpitiya Power Station]
-
A.
Liapootah Power Station
Liapootah Power Station is a hydroelectric power facility in Tasmania, Australia, that forms part of the state's extensive Derwent River power scheme.
-
B.
Ohaaki Power Station
Ohaaki Power Station is a geothermal power plant in New Zealand that generates electricity by harnessing heat from the Taupō Volcanic Zone.
-
C.
Aratiatia Power Station
Aratiatia Power Station is a hydroelectric power station on New Zealand’s Waikato River, known for its dam-controlled Aratiatia Rapids, which are periodically released as a tourist attraction.
-
D.
Wayatinah Power Station
Wayatinah Power Station is a hydroelectric power facility in Tasmania, Australia, that generates electricity using water from the Derwent River system.
-
E.
Nymboida Power Station
Nymboida Power Station is a small hydroelectric power plant in New South Wales, Australia, that generates electricity using water from the Nymboida River.
- 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: Polpitiya Power Station Target entity description: Polpitiya Power Station is a hydroelectric power plant in Sri Lanka that harnesses the flow of the Kelani River to generate electricity for the national grid.
-
A.
Liapootah Power Station
Liapootah Power Station is a hydroelectric power facility in Tasmania, Australia, that forms part of the state's extensive Derwent River power scheme.
-
B.
Ohaaki Power Station
Ohaaki Power Station is a geothermal power plant in New Zealand that generates electricity by harnessing heat from the Taupō Volcanic Zone.
-
C.
Aratiatia Power Station
Aratiatia Power Station is a hydroelectric power station on New Zealand’s Waikato River, known for its dam-controlled Aratiatia Rapids, which are periodically released as a tourist attraction.
-
D.
Wayatinah Power Station
Wayatinah Power Station is a hydroelectric power facility in Tasmania, Australia, that generates electricity using water from the Derwent River system.
-
E.
Nymboida Power Station
Nymboida Power Station is a small hydroelectric power plant in New South Wales, Australia, that generates electricity using water from the Nymboida River.
- 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_69e0c47a95908190ae3e19b716accb3d |
completed | April 16, 2026, 11:14 a.m. |
| NER | Named-entity recognition | batch_69f118ef2b648190bbd78f6b3958d2ee |
completed | April 28, 2026, 8:30 p.m. |
Created at: April 16, 2026, 7:06 p.m.