Triple

T13080909
Position Surface form Disambiguated ID Type / Status
Subject Yuba River E310200 entity
Predicate mouthLocation P417 FINISHED
Object Feather River near Marysville, California
Feather River near Marysville, California is a section of the Feather River in Northern California that serves as the confluence point where the Yuba River joins it before the combined flow continues toward the Sacramento River.
E1020591 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: Feather River near Marysville, California | Statement: [Yuba River, mouthLocation, Feather River near Marysville, California]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Feather River near Marysville, California
Context triple: [Yuba River, mouthLocation, Feather River near Marysville, California]
  • A. Middle Fork Feather River
    The Middle Fork Feather River is a major tributary of California’s Feather River system, flowing through the northern Sierra Nevada and contributing significant water and scenic canyon landscapes before reaching Lake Oroville.
  • B. Feather River headwaters
    The Feather River headwaters are the high-elevation source streams and wetlands in the mountains of Northern California that feed the Feather River, an important tributary of the Sacramento River and key component of the state’s water supply.
  • C. South Fork Feather River
    The South Fork Feather River is a major tributary of the Feather River in Northern California, flowing through the Sierra Nevada and contributing significantly to regional water storage and hydroelectric power.
  • D. North Fork Feather River
    The North Fork Feather River is a major tributary of California’s Feather River, flowing through the northern Sierra Nevada and supporting regional hydroelectric power, recreation, and wildlife habitat.
  • E. West Branch Feather River
    West Branch Feather River is a major tributary of California’s Feather River, flowing through the Sierra Nevada and contributing to the region’s water supply and hydroelectric system.
  • 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: Feather River near Marysville, California
Triple: [Yuba River, mouthLocation, Feather River near Marysville, California]
Generated description
Feather River near Marysville, California is a section of the Feather River in Northern California that serves as the confluence point where the Yuba River joins it before the combined flow continues toward the Sacramento River.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Feather River near Marysville, California
Target entity description: Feather River near Marysville, California is a section of the Feather River in Northern California that serves as the confluence point where the Yuba River joins it before the combined flow continues toward the Sacramento River.
  • A. Middle Fork Feather River
    The Middle Fork Feather River is a major tributary of California’s Feather River system, flowing through the northern Sierra Nevada and contributing significant water and scenic canyon landscapes before reaching Lake Oroville.
  • B. Feather River headwaters
    The Feather River headwaters are the high-elevation source streams and wetlands in the mountains of Northern California that feed the Feather River, an important tributary of the Sacramento River and key component of the state’s water supply.
  • C. South Fork Feather River
    The South Fork Feather River is a major tributary of the Feather River in Northern California, flowing through the Sierra Nevada and contributing significantly to regional water storage and hydroelectric power.
  • D. North Fork Feather River
    The North Fork Feather River is a major tributary of California’s Feather River, flowing through the northern Sierra Nevada and supporting regional hydroelectric power, recreation, and wildlife habitat.
  • E. West Branch Feather River
    West Branch Feather River is a major tributary of California’s Feather River, flowing through the Sierra Nevada and contributing to the region’s water supply and hydroelectric system.
  • 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_69d806a733548190989cfd4ce981ca33 completed April 9, 2026, 8:05 p.m.
NER Named-entity recognition batch_69d98119cb7081908b78ffe83ec99851 completed April 10, 2026, 11 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6d60c603881909dff49f4356042b5 completed May 3, 2026, 4:58 a.m.
NEDg Description generation batch_69f6d86562f88190afd1fe49c4632e09 completed May 3, 2026, 5:08 a.m.
NED2 Entity disambiguation (via description) batch_69f6d9486d748190bc5e2927bc36993e completed May 3, 2026, 5:12 a.m.
Created at: April 9, 2026, 9:01 p.m.