Triple

T571030

Position	Surface form	Disambiguated ID	Type / Status
Subject	Owens Valley	`E13662`	entity
Predicate	managedBy	`P86`	FINISHED
Object	Los Angeles Department of Water and Power The Los Angeles Department of Water and Power is the largest municipal utility in the United States, providing water and electricity to the City of Los Angeles and overseeing key regional water resources.	`E71553`	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: Los Angeles Department of Water and Power | Statement: [Owens Valley, managedBy, Los Angeles Department of Water and Power]

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

Target entity: Los Angeles Department of Water and Power
Context triple: [Owens Valley, managedBy, Los Angeles Department of Water and Power]

A. Portland Water Bureau
The Portland Water Bureau is the municipal agency responsible for providing and managing the drinking water supply and related water services for the city of Portland, Oregon.
B. Los Angeles Department of Parks and Recreation
The Los Angeles Department of Parks and Recreation is the municipal agency responsible for managing and maintaining the city’s public parks, recreational facilities, and open spaces.
C. California Department of Water Resources
The California Department of Water Resources is a state agency responsible for managing California’s water resources, including planning, conservation, flood control, and operation of major water infrastructure.
D. District of Columbia Water and Sewer Authority
The District of Columbia Water and Sewer Authority is the public utility responsible for providing drinking water and wastewater services to Washington, D.C. and parts of the surrounding region.
E. Los Angeles County Metropolitan Transportation Authority
The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
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: Los Angeles Department of Water and Power
Triple: [Owens Valley, managedBy, Los Angeles Department of Water and Power]

Generated description

The Los Angeles Department of Water and Power is the largest municipal utility in the United States, providing water and electricity to the City of Los Angeles and overseeing key regional water resources.

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

Target entity: Los Angeles Department of Water and Power
Target entity description: The Los Angeles Department of Water and Power is the largest municipal utility in the United States, providing water and electricity to the City of Los Angeles and overseeing key regional water resources.

A. Portland Water Bureau
The Portland Water Bureau is the municipal agency responsible for providing and managing the drinking water supply and related water services for the city of Portland, Oregon.
B. Los Angeles Department of Parks and Recreation
The Los Angeles Department of Parks and Recreation is the municipal agency responsible for managing and maintaining the city’s public parks, recreational facilities, and open spaces.
C. California Department of Water Resources
The California Department of Water Resources is a state agency responsible for managing California’s water resources, including planning, conservation, flood control, and operation of major water infrastructure.
D. District of Columbia Water and Sewer Authority
The District of Columbia Water and Sewer Authority is the public utility responsible for providing drinking water and wastewater services to Washington, D.C. and parts of the surrounding region.
E. Los Angeles County Metropolitan Transportation Authority
The Los Angeles County Metropolitan Transportation Authority is the primary public transit agency for Los Angeles County, operating and overseeing the region’s bus and rail systems.
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_69a4933fa4d88190a7949cc83c08c5c1`	completed	March 1, 2026, 7:27 p.m.
NER	Named-entity recognition	`batch_69a49b483ac08190b3be152a7cf42011`	completed	March 1, 2026, 8:02 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69a4fc8475d881909e80d60fbb50c271`	completed	March 2, 2026, 2:57 a.m.
NEDg	Description generation	`batch_69a4fd2938288190b00cb79a10d91150`	completed	March 2, 2026, 2:59 a.m.
NED2	Entity disambiguation (via description)	`batch_69a4fdb5f42c81908ce753cd4283962c`	completed	March 2, 2026, 3:02 a.m.

Created at: March 1, 2026, 7:33 p.m.