Triple

T4271781
Position Surface form Disambiguated ID Type / Status
Subject San Francisco Public Utilities Commission E96956 entity
Predicate ownedInfrastructure P5683 FINISHED
Object Hetch Hetchy Regional Water System E136067 NE FINISHED

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: Hetch Hetchy Regional Water System | Statement: [San Francisco Public Utilities Commission, ownedInfrastructure, Hetch Hetchy Regional Water System]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hetch Hetchy Regional Water System
Context triple: [San Francisco Public Utilities Commission, ownedInfrastructure, Hetch Hetchy Regional Water System]
  • A. Pepacton Reservoir
    Pepacton Reservoir is a large man-made lake in the Catskill Mountains of New York that serves as a major component of New York City's drinking water supply system.
  • B. Hetch Hetchy Valley chosen
    Hetch Hetchy Valley is a glacially carved valley in Yosemite National Park, California, best known for its scenic granite cliffs and for being largely submerged by the Hetch Hetchy Reservoir that supplies water to the San Francisco Bay Area.
  • C. West Basin of Ashokan Reservoir
    The West Basin of Ashokan Reservoir is the western section of the Ashokan Reservoir in New York’s Catskill Mountains, serving as part of a major water supply system for New York City.
  • D. San Francisco Peninsula reservoir system
    The San Francisco Peninsula reservoir system is a network of man-made lakes and related infrastructure that stores and supplies drinking water to the San Francisco Bay Area, particularly the city of San Francisco and nearby communities.
  • E. Shasta Dam
    Shasta Dam is a large concrete gravity dam on California’s Sacramento River, forming Shasta Lake and serving as a key source of water storage, hydroelectric power, and flood control for the state.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69b34543f06c8190915ebb1a4574ffa9 completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b34ffce3d8819083d2278547fa52c1 completed March 12, 2026, 11:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69b5b7a7fbe0819080076b8d8e4c3bbe completed March 14, 2026, 7:31 p.m.
Created at: March 12, 2026, 11:07 p.m.