Triple

T9767200
Position Surface form Disambiguated ID Type / Status
Subject Otay River E237024 entity
Predicate impoundedBy P10781 FINISHED
Object Upper Otay Reservoir
Upper Otay Reservoir is a small man-made lake in San Diego County, California, primarily used for water storage and recreational activities such as fishing and wildlife observation.
 E819925 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: Upper Otay Reservoir | Statement: [Otay River, impoundedBy, Upper Otay Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Upper Otay Reservoir
Context triple: [Otay River, impoundedBy, Upper Otay Reservoir]
  • A. San Carlos Reservoir
    San Carlos Reservoir is a large artificial lake on the Gila River in Arizona, primarily used for irrigation, flood control, and recreation.
  • B. Martinez Reservoir
    Martinez Reservoir is a man-made water storage facility in Contra Costa County, California, used for municipal and irrigation supply as part of the region’s canal and water management system.
  • C. 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.
  • D. La Paloma Reservoir
    La Paloma Reservoir is a major artificial lake in Chile’s Coquimbo Region, known for supporting irrigation and water supply in the Monte Patria area.
  • E. Contra Loma Reservoir
    Contra Loma Reservoir is a man-made lake and recreational area in Antioch, California, used for water storage, fishing, and outdoor activities.
  • 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: Upper Otay Reservoir
Triple: [Otay River, impoundedBy, Upper Otay Reservoir]
Generated description
Upper Otay Reservoir is a small man-made lake in San Diego County, California, primarily used for water storage and recreational activities such as fishing and wildlife observation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Upper Otay Reservoir
Target entity description: Upper Otay Reservoir is a small man-made lake in San Diego County, California, primarily used for water storage and recreational activities such as fishing and wildlife observation.
  • A. San Carlos Reservoir
    San Carlos Reservoir is a large artificial lake on the Gila River in Arizona, primarily used for irrigation, flood control, and recreation.
  • B. Martinez Reservoir
    Martinez Reservoir is a man-made water storage facility in Contra Costa County, California, used for municipal and irrigation supply as part of the region’s canal and water management system.
  • C. 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.
  • D. La Paloma Reservoir
    La Paloma Reservoir is a major artificial lake in Chile’s Coquimbo Region, known for supporting irrigation and water supply in the Monte Patria area.
  • E. Contra Loma Reservoir
    Contra Loma Reservoir is a man-made lake and recreational area in Antioch, California, used for water storage, fishing, and outdoor activities.
  • 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_69ca84d831b8819090322686b47887ce completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cda0a15e408190909745cb1c30937d completed April 1, 2026, 10:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69d1bcfffa6081909f61c66357765d8d completed April 5, 2026, 1:38 a.m.
NEDg Description generation batch_69d1bdacce648190a8dfbe5147cc70c6 completed April 5, 2026, 1:41 a.m.
NED2 Entity disambiguation (via description) batch_69d1be74b8cc8190a5961c863f85fa0e completed April 5, 2026, 1:44 a.m.
Created at: March 30, 2026, 8:25 p.m.