Triple

T21312617
Position Surface form Disambiguated ID Type / Status
Subject Stampede Reservoir E525380 entity
Predicate locatedIn P40 FINISHED
Object Truckee River Basin — NE NERFINISHED

How this triple was built (3 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: Truckee River Basin | Statement: [Stampede Reservoir, locatedIn, Truckee River Basin]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Truckee River Basin
Context triple: [Stampede Reservoir, locatedIn, Truckee River Basin]
  • A. Yuba River watershed
    The Yuba River watershed is the drainage basin in Northern California that collects and channels water from the Sierra Nevada into the Yuba River system.
  • B. Truckee River
    The Truckee River is a prominent river in the western United States that flows from Lake Tahoe in the Sierra Nevada through Nevada to Pyramid Lake, providing vital water resources and recreational opportunities to the region.
  • C. San Joaquin River Basin
    The San Joaquin River Basin is a major watershed in California’s Central Valley that drains the San Joaquin River and its tributaries, supporting extensive agriculture, ecosystems, and communities.
  • D. South Fork American River basin
    The South Fork American River basin is a watershed in the Sierra Nevada of California known for its hydropower facilities, reservoirs, and popular whitewater recreation.
  • E. Sacramento River Basin
    The Sacramento River Basin is a major watershed in Northern California that drains the Sacramento River and its tributaries, supporting extensive agriculture, ecosystems, and water supply for the region.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Truckee River Basin
Target entity description: The Truckee River Basin is a watershed in the eastern Sierra Nevada that drains into the Truckee River, encompassing a network of reservoirs, lakes, and tributaries in California and Nevada.
  • A. Yuba River watershed
    The Yuba River watershed is the drainage basin in Northern California that collects and channels water from the Sierra Nevada into the Yuba River system.
  • B. Truckee River chosen
    The Truckee River is a prominent river in the western United States that flows from Lake Tahoe in the Sierra Nevada through Nevada to Pyramid Lake, providing vital water resources and recreational opportunities to the region.
  • C. San Joaquin River Basin
    The San Joaquin River Basin is a major watershed in California’s Central Valley that drains the San Joaquin River and its tributaries, supporting extensive agriculture, ecosystems, and communities.
  • D. South Fork American River basin
    The South Fork American River basin is a watershed in the Sierra Nevada of California known for its hydropower facilities, reservoirs, and popular whitewater recreation.
  • E. Sacramento River Basin
    The Sacramento River Basin is a major watershed in Northern California that drains the Sacramento River and its tributaries, supporting extensive agriculture, ecosystems, and water supply for the region.
  • F. None of above.

Provenance (2 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_69e0b518b8948190ad69cf9a8784d397 completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e75dcb45f08190a9bcaa366964a2cb completed April 21, 2026, 11:21 a.m.
Created at: April 16, 2026, 4:25 p.m.