Triple

T15301291
Position Surface form Disambiguated ID Type / Status
Subject Whitewater River watershed E365794 entity
Predicate contains P35 FINISHED
Object Coachella Valley Stormwater Channel
The Coachella Valley Stormwater Channel is a major engineered drainage and flood-control waterway in Southern California’s Coachella Valley that conveys storm runoff and agricultural drainage toward the Salton Sea.
E1149242 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: Coachella Valley Stormwater Channel | Statement: [Whitewater River watershed, contains, Coachella Valley Stormwater Channel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Coachella Valley Stormwater Channel
Context triple: [Whitewater River watershed, contains, Coachella Valley Stormwater Channel]
  • A. Coachella Canal
    The Coachella Canal is a major irrigation canal in Southern California that conveys Colorado River water to support agriculture in the Coachella Valley desert region.
  • B. Los Angeles Aqueduct
    The Los Angeles Aqueduct is a major early-20th-century water conveyance system that transports water from California’s Owens Valley to the city of Los Angeles, profoundly shaping the region’s growth and sparking enduring environmental and political controversies.
  • C. Colorado River Aqueduct
    The Colorado River Aqueduct is a major water conveyance system that transports Colorado River water across the desert to supply Southern California’s cities and agricultural areas.
  • D. Pacoima Wash
    Pacoima Wash is a tributary stream in the northeastern San Fernando Valley of Los Angeles County, California, that channels runoff from the San Gabriel Mountains into the Los Angeles River.
  • E. Meadow Valley Wash
    Meadow Valley Wash is an intermittent stream and drainage system in southeastern Nevada that channels runoff through arid Lincoln County toward the Muddy River.
  • 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: Coachella Valley Stormwater Channel
Triple: [Whitewater River watershed, contains, Coachella Valley Stormwater Channel]
Generated description
The Coachella Valley Stormwater Channel is a major engineered drainage and flood-control waterway in Southern California’s Coachella Valley that conveys storm runoff and agricultural drainage toward the Salton Sea.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Coachella Valley Stormwater Channel
Target entity description: The Coachella Valley Stormwater Channel is a major engineered drainage and flood-control waterway in Southern California’s Coachella Valley that conveys storm runoff and agricultural drainage toward the Salton Sea.
  • A. Coachella Canal
    The Coachella Canal is a major irrigation canal in Southern California that conveys Colorado River water to support agriculture in the Coachella Valley desert region.
  • B. Los Angeles Aqueduct
    The Los Angeles Aqueduct is a major early-20th-century water conveyance system that transports water from California’s Owens Valley to the city of Los Angeles, profoundly shaping the region’s growth and sparking enduring environmental and political controversies.
  • C. Colorado River Aqueduct
    The Colorado River Aqueduct is a major water conveyance system that transports Colorado River water across the desert to supply Southern California’s cities and agricultural areas.
  • D. Pacoima Wash
    Pacoima Wash is a tributary stream in the northeastern San Fernando Valley of Los Angeles County, California, that channels runoff from the San Gabriel Mountains into the Los Angeles River.
  • E. Meadow Valley Wash
    Meadow Valley Wash is an intermittent stream and drainage system in southeastern Nevada that channels runoff through arid Lincoln County toward the Muddy River.
  • F. None of above. chosen

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_69d85a113ee881908e297a1d38dd79fa completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e0368869f8819098cf9e7801e37548 completed April 16, 2026, 1:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69feef8513a08190b2d2a7dde85dd43d completed May 9, 2026, 8:25 a.m.
NEDg Description generation batch_69fef23de4688190beeb59ef43891e3d completed May 9, 2026, 8:37 a.m.
NED2 Entity disambiguation (via description) batch_69fef2d8fe04819084bb3deb6859d746 completed May 9, 2026, 8:39 a.m.
Created at: April 10, 2026, 3:15 a.m.