Triple

T4856409
Position Surface form Disambiguated ID Type / Status
Subject Mokelumne River area E108546 entity
Predicate managedBy P86 FINISHED
Object 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.
 E475111 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: East Bay Municipal Utility District | Statement: [Mokelumne River area, managedBy, East Bay Municipal Utility District]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: East Bay Municipal Utility District
Context triple: [Mokelumne River area, managedBy, East Bay Municipal Utility District]
  • A. 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.
  • B. 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.
  • C. Alameda County Water District
    Alameda County Water District is a public water agency in California responsible for providing drinking water and related services to communities in southern Alameda County, including Fremont, Newark, and Union City.
  • D. 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.
  • 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: East Bay Municipal Utility District
Triple: [Mokelumne River area, managedBy, East Bay Municipal Utility District]
Generated description
East Bay Municipal Utility District is a public water and wastewater agency serving the San Francisco Bay Area’s East Bay communities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: East Bay Municipal Utility District
Target entity description: East Bay Municipal Utility District is a public water and wastewater agency serving the San Francisco Bay Area’s East Bay communities.
  • A. 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.
  • B. 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.
  • C. Alameda County Water District
    Alameda County Water District is a public water agency in California responsible for providing drinking water and related services to communities in southern Alameda County, including Fremont, Newark, and Union City.
  • D. 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.
  • 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_69bd440a89548190a5f14ba6da6b97dc completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6d3df75c8190830e2c927cc5a4f8 completed March 20, 2026, 3:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69be5cec638481909a3345f348116bbc completed March 21, 2026, 8:55 a.m.
NEDg Description generation batch_69be5fd0ec648190842438a3235481e5 completed March 21, 2026, 9:07 a.m.
NED2 Entity disambiguation (via description) batch_69be606f82e88190b2b1501ec83b33af completed March 21, 2026, 9:10 a.m.
Created at: March 20, 2026, 1:26 p.m.