Triple
T15421756
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Greater Los Angeles hydrologic system |
E369395
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object | Metropolitan Water District of Southern California |
E427265
|
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: Metropolitan Water District of Southern California | Statement: [Greater Los Angeles hydrologic system, operatedBy, Metropolitan Water District of Southern California]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan Water District of Southern California Context triple: [Greater Los Angeles hydrologic system, operatedBy, Metropolitan Water District of Southern California]
-
A.
Metropolitan Water District of Southern California
chosen
The Metropolitan Water District of Southern California is a regional wholesale water agency that imports, manages, and distributes water supplies to numerous cities and local water districts across Southern California.
-
B.
Los Angeles City Water Company
Los Angeles City Water Company was a private utility in Los Angeles that managed the city’s early water supply system before municipal control and the rise of the Los Angeles Department of Water and Power.
-
C.
Mojave Water Agency
The Mojave Water Agency is a regional water management and planning agency in Southern California responsible for securing, conserving, and overseeing water resources for communities in the Mojave Desert region.
-
D.
Los Angeles Department of Water and Power
The Los Angeles Department of Water and Power is the largest municipal utility in the United States, providing water and electricity to the City of Los Angeles and overseeing key regional water resources.
-
E.
Coachella Valley Water District
Coachella Valley Water District is a public water agency in Southern California responsible for providing water supply, irrigation, and related services to communities in the Coachella Valley region.
- 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_69d85a1849f48190bf898068b2806fae |
completed | April 10, 2026, 2:02 a.m. |
| NER | Named-entity recognition | batch_69e03ebe7b1081908e6b9e6e128a8d5d |
completed | April 16, 2026, 1:43 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff21a18c548190b8591776828c1793 |
completed | May 9, 2026, 11:59 a.m. |
Created at: April 10, 2026, 3:20 a.m.