Triple

T22123118
Position Surface form Disambiguated ID Type / Status
Subject Hetch Hetchy Regional Water System E546722 entity
Predicate usesReservoir P107038 FINISHED
Object San Antonio Reservoir — NE NERFINISHED

How this triple was built (2 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: San Antonio Reservoir | Statement: [Hetch Hetchy Regional Water System, usesReservoir, San Antonio Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: San Antonio Reservoir
Context triple: [Hetch Hetchy Regional Water System, usesReservoir, San Antonio Reservoir]
  • A. San Antonio Reservoir chosen
    San Antonio Reservoir is a major water storage facility in California that supplies drinking water to the San Francisco Bay Area as part of its regional reservoir network.
  • B. Contreras Reservoir
    Contreras Reservoir is a major artificial lake in Spain used for water storage, hydroelectric power generation, and flood control along the Júcar River basin.
  • C. San Juan Reservoir
    San Juan Reservoir is a major artificial lake in central Spain, popular for water sports, recreation, and supplying water and hydroelectric power to the surrounding region.
  • D. La Paloma Reservoir
    La Paloma Reservoir is a major artificial lake in Chile’s Coquimbo Region, known for supporting irrigation and water supply in the Monte Patria area.
  • E. Los Vaqueros Reservoir
    Los Vaqueros Reservoir is a major man-made water storage facility in Contra Costa County, California, that supplies drinking water, supports wildlife habitat, and provides recreational opportunities.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e11e39bf348190b541bfa16a7b71e0 completed April 16, 2026, 5:36 p.m.
NER Named-entity recognition batch_69f1297f3fb48190b6aaca18b40c37ab completed April 28, 2026, 9:41 p.m.
Created at: April 16, 2026, 8:31 p.m.