Triple

T20839258
Position Surface form Disambiguated ID Type / Status
Subject Lexington Reservoir E513046 entity
Predicate owner P347 FINISHED
Object Santa Clara Valley Water District NE NERFINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Santa Clara Valley Water District | Statement: [Lexington Reservoir, owner, Santa Clara Valley Water District]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Santa Clara Valley Water District
Context triple: [Lexington Reservoir, owner, Santa Clara Valley Water District]
  • A. Santa Clara Valley Water District chosen
    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.
  • 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. 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. Solano County Water Agency
    Solano County Water Agency is a public water management agency in California responsible for regional water supply, flood control, and environmental stewardship in Solano County.
  • E. San Lorenzo Valley Water District
    San Lorenzo Valley Water District is a local public agency responsible for providing and managing water services for communities in the San Lorenzo Valley area of Santa Cruz County, California.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0b4cf62a88190bbf92351e9e57259 elicitation completed
NER batch_69e6c34a60848190b33078172675f8d7 ner completed
Created at: April 16, 2026, 12:42 p.m.