Triple

T2773405
Position Surface form Disambiguated ID Type / Status
Subject Delta-Mendota Canal E61510 entity
Predicate connects P390 FINISHED
Object Mendota Pool on the San Joaquin River
Mendota Pool on the San Joaquin River is a major water storage and distribution reservoir in California’s Central Valley that serves as a key junction between the San Joaquin River and the state’s irrigation canal system.
E297766 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: Mendota Pool on the San Joaquin River | Statement: [Delta-Mendota Canal, connects, Mendota Pool on the San Joaquin River]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mendota Pool on the San Joaquin River
Context triple: [Delta-Mendota Canal, connects, Mendota Pool on the San Joaquin River]
  • A. San Joaquin River
    The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
  • B. Perris Dam
    Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
  • C. Folsom Lake
    Folsom Lake is a large man-made reservoir in Northern California known for recreation, water storage, and flood control near the Sacramento area.
  • D. Fresno River
    The Fresno River is a waterway in central California that flows through the Sierra Nevada foothills and the San Joaquin Valley, contributing to the region’s agriculture and lending its name to Fresno County.
  • E. Folsom Dam
    Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
  • 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: Mendota Pool on the San Joaquin River
Triple: [Delta-Mendota Canal, connects, Mendota Pool on the San Joaquin River]
Generated description
Mendota Pool on the San Joaquin River is a major water storage and distribution reservoir in California’s Central Valley that serves as a key junction between the San Joaquin River and the state’s irrigation canal system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mendota Pool on the San Joaquin River
Target entity description: Mendota Pool on the San Joaquin River is a major water storage and distribution reservoir in California’s Central Valley that serves as a key junction between the San Joaquin River and the state’s irrigation canal system.
  • A. Delta–Mendota Canal intake chosen
    The Delta–Mendota Canal intake is the headworks facility in California’s Sacramento–San Joaquin Delta where water is diverted into the Delta–Mendota Canal for delivery to agricultural and other users in the San Joaquin Valley.
  • B. 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.
  • C. San Joaquin River
    The San Joaquin River is a major river in central California that flows through the San Joaquin Valley and supports extensive agricultural, ecological, and water supply systems before joining the Sacramento–San Joaquin Delta.
  • D. Perris Dam
    Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
  • E. Folsom Lake
    Folsom Lake is a large man-made reservoir in Northern California known for recreation, water storage, and flood control near the Sacramento area.
  • F. None of above.

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_69ab4b7cd13481909174bca9809ed259 completed March 6, 2026, 9:47 p.m.
NER Named-entity recognition batch_69abdd7e29e08190921fd4ac9d0679ec completed March 7, 2026, 8:10 a.m.
NED1 Entity disambiguation (via context triple) batch_69afc0553588819098d478b4aaa18478 completed March 10, 2026, 6:55 a.m.
NEDg Description generation batch_69afc1c74ecc8190ba8b9926ff28f24e completed March 10, 2026, 7:01 a.m.
NED2 Entity disambiguation (via description) batch_69afc2d5aecc81909ce90a7e891568c9 completed March 10, 2026, 7:05 a.m.
Created at: March 6, 2026, 9:57 p.m.