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.