Triple

T12478891
Position Surface form Disambiguated ID Type / Status
Subject Mendota Pool E298250 entity
Predicate formedBy P972 FINISHED
Object Mendota Dam
Mendota Dam is a concrete diversion structure on the San Joaquin River in California that regulates water flows and supplies irrigation by impounding the Mendota Pool.
 E1077905 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: Mendota Dam | Statement: [Mendota Pool, formedBy, Mendota Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mendota Dam
Context triple: [Mendota Pool, formedBy, Mendota Dam]
  • A. Palisade Dam
    Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
  • B. La Mesa Dam
    La Mesa Dam is a major water reservoir in Quezon City, Philippines, that supplies a significant portion of Metro Manila’s drinking water.
  • C. Oxbow Dam
    Oxbow Dam is a hydroelectric dam on the Snake River in eastern Oregon, forming Oxbow Reservoir as part of the Hells Canyon Complex.
  • D. Pardee Dam
    Pardee Dam is a concrete arch dam in California that forms Pardee Reservoir, providing water storage, hydroelectric power, and flood control for the Mokelumne River system.
  • E. Pine Flat Dam
    Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
  • 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: Mendota Dam
Triple: [Mendota Pool, formedBy, Mendota Dam]
Generated description
Mendota Dam is a concrete diversion structure on the San Joaquin River in California that regulates water flows and supplies irrigation by impounding the Mendota Pool.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mendota Dam
Target entity description: Mendota Dam is a concrete diversion structure on the San Joaquin River in California that regulates water flows and supplies irrigation by impounding the Mendota Pool.
  • A. Palisade Dam
    Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
  • B. La Mesa Dam
    La Mesa Dam is a major water reservoir in Quezon City, Philippines, that supplies a significant portion of Metro Manila’s drinking water.
  • C. Oxbow Dam
    Oxbow Dam is a hydroelectric dam on the Snake River in eastern Oregon, forming Oxbow Reservoir as part of the Hells Canyon Complex.
  • D. Pardee Dam
    Pardee Dam is a concrete arch dam in California that forms Pardee Reservoir, providing water storage, hydroelectric power, and flood control for the Mokelumne River system.
  • E. Pine Flat Dam
    Pine Flat Dam is a large concrete gravity dam in California that creates Pine Flat Lake and provides flood control, irrigation water storage, and hydroelectric power on the Kings River.
  • 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_69d6ada377208190a36011199a4d8558 completed April 8, 2026, 7:33 p.m.
NER Named-entity recognition batch_69d94dcdcd3c81908ad29145db241408 completed April 10, 2026, 7:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69fcb63c80048190be87b41cdd4ac775 completed May 7, 2026, 3:56 p.m.
NEDg Description generation batch_69fcc4fa09448190b662af829712e657 completed May 7, 2026, 4:59 p.m.
NED2 Entity disambiguation (via description) batch_69fcc5d162c081908750fed589ed2d69 completed May 7, 2026, 5:03 p.m.
Created at: April 8, 2026, 9:56 p.m.