Triple

T21889857

Position	Surface form	Disambiguated ID	Type / Status
Subject	Kelani Ganga	`E540509`	entity
Predicate	hasHydropowerPlant	`P15311`	FINISHED
Object	Canyon 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: Canyon Power Station | Statement: [Kelani Ganga, hasHydropowerPlant, Canyon Power Station]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Canyon Power Station
Context triple: [Kelani Ganga, hasHydropowerPlant, Canyon Power Station]

A. Glenwood Power Station
Glenwood Power Station is an early 20th-century, now-abandoned industrial power plant on the Hudson River in Yonkers, New York, noted for its grand Beaux-Arts architecture and historic significance.
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. Olidan power station
Olidan power station is one of Sweden’s oldest large-scale hydroelectric power plants, located in Trollhättan and historically important for the country’s industrial electrification.
D. 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.
E. Sual Power Station
Sual Power Station is a large coal-fired power plant in the Philippines and one of the country’s major sources of electricity.
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: Canyon Power Station
Target entity description: Canyon Power Station is a hydroelectric power facility located on Sri Lanka’s Kelani River, contributing to the country’s renewable energy generation.

A. Glenwood Power Station
Glenwood Power Station is an early 20th-century, now-abandoned industrial power plant on the Hudson River in Yonkers, New York, noted for its grand Beaux-Arts architecture and historic significance.
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. Olidan power station
Olidan power station is one of Sweden’s oldest large-scale hydroelectric power plants, located in Trollhättan and historically important for the country’s industrial electrification.
D. 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.
E. Sual Power Station
Sual Power Station is a large coal-fired power plant in the Philippines and one of the country’s major sources of electricity.
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.