Triple

T21074085

Position	Surface form	Disambiguated ID	Type / Status
Subject	Volunteer Park	`E519185`	entity
Predicate	contains	`P35`	FINISHED
Object	Seattle municipal water reservoir	`—`	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: Seattle municipal water reservoir | Statement: [Volunteer Park, contains, Seattle municipal water reservoir]

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

Target entity: Seattle municipal water reservoir
Context triple: [Volunteer Park, contains, Seattle municipal water reservoir]

A. Pittock Reservoir
Pittock Reservoir is a man-made lake in southwestern Ontario, Canada, used for flood control, recreation, and wildlife habitat within the Pittock Conservation Area.
B. Coquitlam Lake reservoir
Coquitlam Lake reservoir is a man-made lake in British Columbia that serves as a major source of drinking water and recreation for the Metro Vancouver region.
C. Toronto Reservoir
Toronto Reservoir is a man-made lake in Sullivan County, New York, primarily used for water supply and recreational activities such as fishing and boating.
D. Rampart Reservoir
Rampart Reservoir is a popular high-altitude lake in Colorado known for fishing, boating, and scenic outdoor recreation near the Pikes Peak region.
E. Victoria Reservoir
Victoria Reservoir is a major hydroelectric and irrigation reservoir in central Sri Lanka, created by the Victoria Dam on the Mahaweli 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: Seattle municipal water reservoir
Target entity description: The Seattle municipal water reservoir in Volunteer Park is a key component of the city’s drinking water system, historically serving as a major storage and distribution facility for treated water.

A. Pittock Reservoir
Pittock Reservoir is a man-made lake in southwestern Ontario, Canada, used for flood control, recreation, and wildlife habitat within the Pittock Conservation Area.
B. Coquitlam Lake reservoir
Coquitlam Lake reservoir is a man-made lake in British Columbia that serves as a major source of drinking water and recreation for the Metro Vancouver region.
C. Toronto Reservoir
Toronto Reservoir is a man-made lake in Sullivan County, New York, primarily used for water supply and recreational activities such as fishing and boating.
D. Rampart Reservoir
Rampart Reservoir is a popular high-altitude lake in Colorado known for fishing, boating, and scenic outdoor recreation near the Pikes Peak region.
E. Victoria Reservoir
Victoria Reservoir is a major hydroelectric and irrigation reservoir in central Sri Lanka, created by the Victoria Dam on the Mahaweli 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_69e0b506e59c8190849b71ed07929215`	completed	April 16, 2026, 10:08 a.m.
NER	Named-entity recognition	`batch_69e702d491a08190a9f5f28c0b72d38c`	completed	April 21, 2026, 4:53 a.m.

Created at: April 16, 2026, 2:48 p.m.