Triple

T21965138

Position	Surface form	Disambiguated ID	Type / Status
Subject	Waitākere Ranges	`E542437`	entity
Predicate	contains	`P35`	FINISHED
Object	Upper Nihotupu Dam	`—`	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: Upper Nihotupu Dam | Statement: [Waitākere Ranges, contains, Upper Nihotupu Dam]

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

Target entity: Upper Nihotupu Dam
Context triple: [Waitākere Ranges, contains, Upper Nihotupu Dam]

A. Petenwell Dam
Petenwell Dam is a hydroelectric dam in central Wisconsin that creates Petenwell Lake, one of the state’s largest reservoirs, on the Wisconsin River.
B. Almanor Dam
Almanor Dam is a large earthfill hydroelectric dam in Plumas County, California, that impounds the North Fork Feather River to form Lake Almanor.
C. McPhee Dam
McPhee Dam is a large earthen dam in southwestern Colorado that creates McPhee Reservoir, one of the state’s largest bodies of water, primarily for irrigation, flood control, and recreation.
D. O’Neill Dam
O’Neill Dam is an earthfill embankment dam in California that forms the O’Neill Forebay as part of the state’s Central Valley Project water storage and conveyance system.
E. Rossens Dam
Rossens Dam is a large concrete arch-gravity dam on the Sarine River in the canton of Fribourg, Switzerland, primarily used for hydroelectric power generation and creating the Lake of Gruyère reservoir.
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: Upper Nihotupu Dam
Target entity description: Upper Nihotupu Dam is a concrete water-supply dam in Auckland, New Zealand, forming part of the city’s historic Waitākere Ranges reservoir system.

A. Petenwell Dam
Petenwell Dam is a hydroelectric dam in central Wisconsin that creates Petenwell Lake, one of the state’s largest reservoirs, on the Wisconsin River.
B. Almanor Dam
Almanor Dam is a large earthfill hydroelectric dam in Plumas County, California, that impounds the North Fork Feather River to form Lake Almanor.
C. McPhee Dam
McPhee Dam is a large earthen dam in southwestern Colorado that creates McPhee Reservoir, one of the state’s largest bodies of water, primarily for irrigation, flood control, and recreation.
D. O’Neill Dam
O’Neill Dam is an earthfill embankment dam in California that forms the O’Neill Forebay as part of the state’s Central Valley Project water storage and conveyance system.
E. Rossens Dam
Rossens Dam is a large concrete arch-gravity dam on the Sarine River in the canton of Fribourg, Switzerland, primarily used for hydroelectric power generation and creating the Lake of Gruyère reservoir.
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_69e0c47fab1081908dc74a6545dbb051`	completed	April 16, 2026, 11:14 a.m.
NER	Named-entity recognition	`batch_69f1245aabf88190a44564e6eaaa94ce`	completed	April 28, 2026, 9:19 p.m.

Created at: April 16, 2026, 8:01 p.m.