Triple

T5814338
Position Surface form Disambiguated ID Type / Status
Subject Union Valley Reservoir E128946 entity
Predicate operator P179 FINISHED
Object Sacramento Municipal Utility District
Sacramento Municipal Utility District is a community-owned electric utility serving the Sacramento, California region, known for providing power and managing energy resources for local residents and businesses.
 E551335 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: Sacramento Municipal Utility District | Statement: [Union Valley Reservoir, operator, Sacramento Municipal Utility District]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sacramento Municipal Utility District
Context triple: [Union Valley Reservoir, operator, Sacramento Municipal Utility District]
  • A. East Bay Municipal Utility District
    East Bay Municipal Utility District is a public water and wastewater agency serving the San Francisco Bay Area’s East Bay communities.
  • B. Contra Costa Water District
    Contra Costa Water District is a public water agency in California that supplies drinking and irrigation water to communities in and around Contra Costa County.
  • C. Santa Clara Valley Water District
    Santa Clara Valley Water District is the public agency responsible for managing water supply, flood protection, and stream stewardship for Santa Clara County in California’s Silicon Valley.
  • D. San Francisco Public Utilities Commission
    The San Francisco Public Utilities Commission is the city agency responsible for providing and managing essential services such as water, power, and wastewater for San Francisco and surrounding communities.
  • E. 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.
  • 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: Sacramento Municipal Utility District
Triple: [Union Valley Reservoir, operator, Sacramento Municipal Utility District]
Generated description
Sacramento Municipal Utility District is a community-owned electric utility serving the Sacramento, California region, known for providing power and managing energy resources for local residents and businesses.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Sacramento Municipal Utility District
Target entity description: Sacramento Municipal Utility District is a community-owned electric utility serving the Sacramento, California region, known for providing power and managing energy resources for local residents and businesses.
  • A. East Bay Municipal Utility District
    East Bay Municipal Utility District is a public water and wastewater agency serving the San Francisco Bay Area’s East Bay communities.
  • B. Contra Costa Water District
    Contra Costa Water District is a public water agency in California that supplies drinking and irrigation water to communities in and around Contra Costa County.
  • C. Santa Clara Valley Water District
    Santa Clara Valley Water District is the public agency responsible for managing water supply, flood protection, and stream stewardship for Santa Clara County in California’s Silicon Valley.
  • D. San Francisco Public Utilities Commission
    The San Francisco Public Utilities Commission is the city agency responsible for providing and managing essential services such as water, power, and wastewater for San Francisco and surrounding communities.
  • E. 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.
  • 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_69c0084788848190bcf71f6bc5d71597 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c03361c79081908baf872821e79983 completed March 22, 2026, 6:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0a185cc78819098c0f04e7ebfb3c4 completed March 23, 2026, 2:12 a.m.
NEDg Description generation batch_69c0a2463cb08190aa5976ebd62c30d6 completed March 23, 2026, 2:15 a.m.
NED2 Entity disambiguation (via description) batch_69c0a2afcef88190a77c8089a1b85393 completed March 23, 2026, 2:17 a.m.
Created at: March 22, 2026, 3:53 p.m.