Triple

T22579250
Position Surface form Disambiguated ID Type / Status
Subject Pilarcitos Reservoir E544521 entity
Predicate formedBy P972 FINISHED
Object Pilarcitos Dam
Pilarcitos Dam is a historic water-supply dam in San Mateo County, California, that impounds Pilarcitos Creek to create the Pilarcitos Reservoir serving the San Francisco Bay Area.
 E1546848 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: Pilarcitos Dam | Statement: [Pilarcitos Reservoir, formedBy, Pilarcitos Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pilarcitos Dam
Context triple: [Pilarcitos Reservoir, formedBy, Pilarcitos Dam]
  • A. Burguillo Dam
    Burguillo Dam is a Spanish hydroelectric and irrigation dam located in Ávila province, central Spain, that impounds the Alberche River to form the Burguillo Reservoir.
  • B. Juncal Dam
    Juncal Dam is a concrete arch dam in Santa Barbara County, California, that forms Jameson Lake and supplies drinking water to the city of Santa Barbara.
  • C. Valdecañas Dam
    Valdecañas Dam is a large hydroelectric and water-regulation dam on the Tagus River in Spain, known for forming the Valdecañas Reservoir used for power generation, irrigation, and recreation.
  • D. Caracoles Dam
    Caracoles Dam is a hydroelectric dam on Argentina’s San Juan River that generates power and helps regulate water resources in the region.
  • E. La Torrassa Dam
    La Torrassa Dam is a hydroelectric and water-regulation dam located on the Noguera Pallaresa River in the Catalan Pyrenees of Spain.
  • 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: Pilarcitos Dam
Triple: [Pilarcitos Reservoir, formedBy, Pilarcitos Dam]
Generated description
Pilarcitos Dam is a historic water-supply dam in San Mateo County, California, that impounds Pilarcitos Creek to create the Pilarcitos Reservoir serving the San Francisco Bay Area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pilarcitos Dam
Target entity description: Pilarcitos Dam is a historic water-supply dam in San Mateo County, California, that impounds Pilarcitos Creek to create the Pilarcitos Reservoir serving the San Francisco Bay Area.
  • A. Burguillo Dam
    Burguillo Dam is a Spanish hydroelectric and irrigation dam located in Ávila province, central Spain, that impounds the Alberche River to form the Burguillo Reservoir.
  • B. Juncal Dam
    Juncal Dam is a concrete arch dam in Santa Barbara County, California, that forms Jameson Lake and supplies drinking water to the city of Santa Barbara.
  • C. Valdecañas Dam
    Valdecañas Dam is a large hydroelectric and water-regulation dam on the Tagus River in Spain, known for forming the Valdecañas Reservoir used for power generation, irrigation, and recreation.
  • D. Caracoles Dam
    Caracoles Dam is a hydroelectric dam on Argentina’s San Juan River that generates power and helps regulate water resources in the region.
  • E. La Torrassa Dam
    La Torrassa Dam is a hydroelectric and water-regulation dam located on the Noguera Pallaresa River in the Catalan Pyrenees of Spain.
  • 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_69e11e30d05481909df915354c89f0d6 completed April 16, 2026, 5:36 p.m.
NER Named-entity recognition batch_69f15fefa1308190876b617d47ba08f3 completed April 29, 2026, 1:33 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b584e77e0819090b45072c5f8521f completed May 18, 2026, 6:19 p.m.
NEDg Description generation batch_6a0b6f5b85548190bd54f5a13dd27c5d completed May 18, 2026, 7:58 p.m.
NED2 Entity disambiguation (via description) batch_6a0b7072e43c8190ad8f8d09f61d3f7b completed May 18, 2026, 8:02 p.m.
Created at: April 16, 2026, 8:53 p.m.