Triple

T21889856

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

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

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

A. Old Laxapana Power Station
Old Laxapana Power Station is a historic hydroelectric power plant in Sri Lanka that harnesses the flow of the Kelani River to generate electricity.
B. Samanalawewa Power Station
Samanalawewa Power Station is a hydroelectric power facility in Sri Lanka that generates electricity using water from the Samanalawewa Reservoir.
C. Markaba power station
Markaba power station is a hydroelectric facility in Lebanon that harnesses the flow of the Litani River to generate electricity.
D. Mangahao Power Station
Mangahao Power Station is one of New Zealand’s earliest large hydroelectric power plants, located in the Tararua Ranges and supplying electricity to the lower North Island.
E. Wayatinah Power Station
Wayatinah Power Station is a hydroelectric power facility in Tasmania, Australia, that generates electricity using water from the Derwent River system.
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: New Laxapana Power Station
Target entity description: New Laxapana Power Station is a major hydroelectric power plant in Sri Lanka that harnesses the flow of the Kelani River to generate electricity for the national grid.

A. Old Laxapana Power Station chosen
Old Laxapana Power Station is a historic hydroelectric power plant in Sri Lanka that harnesses the flow of the Kelani River to generate electricity.
B. Samanalawewa Power Station
Samanalawewa Power Station is a hydroelectric power facility in Sri Lanka that generates electricity using water from the Samanalawewa Reservoir.
C. Markaba power station
Markaba power station is a hydroelectric facility in Lebanon that harnesses the flow of the Litani River to generate electricity.
D. Mangahao Power Station
Mangahao Power Station is one of New Zealand’s earliest large hydroelectric power plants, located in the Tararua Ranges and supplying electricity to the lower North Island.
E. Wayatinah Power Station
Wayatinah Power Station is a hydroelectric power facility in Tasmania, Australia, that generates electricity using water from the Derwent River system.
F. None of above.

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.