Triple

T1109530
Position Surface form Disambiguated ID Type / Status
Subject Tuolumne River E25560 entity
Predicate formsReservoir P11309 FINISHED
Object Don Pedro Reservoir
Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
 E138313 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: Don Pedro Reservoir | Statement: [Tuolumne River, formsReservoir, Don Pedro Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Don Pedro Reservoir
Context triple: [Tuolumne River, formsReservoir, Don Pedro Reservoir]
  • A. Crystal Springs Reservoir
    Crystal Springs Reservoir is a large artificial lake system on the San Francisco Peninsula that serves as a major drinking water source and scenic open-space area for the region.
  • B. Amawalk Reservoir
    Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
  • C. Ice House Reservoir
    Ice House Reservoir is a popular alpine lake in California’s Sierra Nevada known for camping, boating, and fishing within the Eldorado National Forest.
  • D. San Luis Reservoir
    San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
  • E. Hillview Reservoir
    Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution 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: Don Pedro Reservoir
Triple: [Tuolumne River, formsReservoir, Don Pedro Reservoir]
Generated description
Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Don Pedro Reservoir
Target entity description: Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
  • A. Crystal Springs Reservoir
    Crystal Springs Reservoir is a large artificial lake system on the San Francisco Peninsula that serves as a major drinking water source and scenic open-space area for the region.
  • B. Amawalk Reservoir
    Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
  • C. Ice House Reservoir
    Ice House Reservoir is a popular alpine lake in California’s Sierra Nevada known for camping, boating, and fishing within the Eldorado National Forest.
  • D. San Luis Reservoir
    San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
  • E. Hillview Reservoir
    Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution 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_69a49428d4448190b3b36991ceae87ce completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4ba045fd88190982e1c6278fb9ca3 completed March 1, 2026, 10:13 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac7f2dc92481909ee6d9d6d4257f1b completed March 7, 2026, 7:40 p.m.
NEDg Description generation batch_69ac7f9a55dc819098204d53aac70ef3 completed March 7, 2026, 7:42 p.m.
NED2 Entity disambiguation (via description) batch_69ac80c3c6b08190a99119f5661c0157 completed March 7, 2026, 7:47 p.m.
Created at: March 1, 2026, 7:43 p.m.