Triple

T6553109

Position	Surface form	Disambiguated ID	Type / Status
Subject	Folsom	`E152375`	entity
Predicate	hasLandmark	`P105`	FINISHED
Object	Folsom Powerhouse State Historic Park Folsom Powerhouse State Historic Park is a California state park preserving one of the earliest AC hydroelectric power stations in the United States, which once supplied electricity to Sacramento.	`E604663`	NE FINISHED

How this triple was built (4 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: Folsom Powerhouse State Historic Park | Statement: [Folsom, hasLandmark, Folsom Powerhouse State Historic Park]

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

Target entity: Folsom Powerhouse State Historic Park
Context triple: [Folsom, hasLandmark, Folsom Powerhouse State Historic Park]

A. Shasta State Historic Park
Shasta State Historic Park is a preserved Gold Rush–era town site in Northern California featuring historic building ruins, a museum, and restored structures that interpret 19th-century frontier life.
B. Benicia Capitol State Historic Park
Benicia Capitol State Historic Park is a California state park preserving the former state capitol building and related historic structures in the city of Benicia.
C. Fort Townsend Historical State Park
Fort Townsend Historical State Park is a Washington state park preserving the site and remnants of a 19th-century U.S. Army fort on the Quimper Peninsula, offering forested trails, historic features, and scenic views of Puget Sound.
D. Fort Casey State Park
Fort Casey State Park is a historic coastal defense site and popular recreation area on Whidbey Island in Washington, featuring preserved gun batteries, a lighthouse, and scenic views of Admiralty Inlet.
E. Sonoma State Historic Park
Sonoma State Historic Park is a California state park in the town of Sonoma that preserves significant sites from the Mexican and early American periods, including the Sonoma Plaza and historic adobe buildings.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NEDg Description generation gpt-5.1

Instruction

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Input

Entity: Folsom Powerhouse State Historic Park
Triple: [Folsom, hasLandmark, Folsom Powerhouse State Historic Park]

Generated description

Folsom Powerhouse State Historic Park is a California state park preserving one of the earliest AC hydroelectric power stations in the United States, which once supplied electricity to Sacramento.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Folsom Powerhouse State Historic Park
Target entity description: Folsom Powerhouse State Historic Park is a California state park preserving one of the earliest AC hydroelectric power stations in the United States, which once supplied electricity to Sacramento.

A. Shasta State Historic Park
Shasta State Historic Park is a preserved Gold Rush–era town site in Northern California featuring historic building ruins, a museum, and restored structures that interpret 19th-century frontier life.
B. Benicia Capitol State Historic Park
Benicia Capitol State Historic Park is a California state park preserving the former state capitol building and related historic structures in the city of Benicia.
C. Fort Townsend Historical State Park
Fort Townsend Historical State Park is a Washington state park preserving the site and remnants of a 19th-century U.S. Army fort on the Quimper Peninsula, offering forested trails, historic features, and scenic views of Puget Sound.
D. Fort Casey State Park
Fort Casey State Park is a historic coastal defense site and popular recreation area on Whidbey Island in Washington, featuring preserved gun batteries, a lighthouse, and scenic views of Admiralty Inlet.
E. Sonoma State Historic Park
Sonoma State Historic Park is a California state park in the town of Sonoma that preserves significant sites from the Mexican and early American periods, including the Sonoma Plaza and historic adobe buildings.
F. None of above. chosen

Provenance (5 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_69c688058d6881908c19b309cc55dbfa`	completed	March 27, 2026, 1:37 p.m.
NER	Named-entity recognition	`batch_69c6ae073158819086befaea0e0ab43a`	completed	March 27, 2026, 4:19 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69c6d55707d081908104f08e1d59d603`	completed	March 27, 2026, 7:07 p.m.
NEDg	Description generation	`batch_69c6d67574cc8190acf20c1a598c32ee`	completed	March 27, 2026, 7:11 p.m.
NED2	Entity disambiguation (via description)	`batch_69c6d84076d48190ada0903af49613de`	completed	March 27, 2026, 7:19 p.m.

Created at: March 27, 2026, 1:51 p.m.