Triple

T9867473
Position Surface form Disambiguated ID Type / Status
Subject San Gabriel River E239869 entity
Predicate impoundedBy P10781 FINISHED
Object Granger Dam
Granger Dam is a flood-control and water-management structure located on the San Gabriel River in Southern California.
 E856884 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: Granger Dam | Statement: [San Gabriel River, impoundedBy, Granger Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Granger Dam
Context triple: [San Gabriel River, impoundedBy, Granger Dam]
  • A. Harriman Dam
    Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
  • B. Jennings Randolph Dam
    Jennings Randolph Dam is a large earthen flood-control and water-supply dam on the North Branch Potomac River along the Maryland–West Virginia border in the United States.
  • C. Goodwin Dam
    Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
  • D. J. Percy Priest Dam
    J. Percy Priest Dam is a U.S. Army Corps of Engineers flood control and hydroelectric dam on the Stones River near Nashville, Tennessee.
  • E. La Grange Dam
    La Grange Dam is a historic diversion dam on California’s Tuolumne River that supplies irrigation water to agricultural lands in the San Joaquin Valley.
  • 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: Granger Dam
Triple: [San Gabriel River, impoundedBy, Granger Dam]
Generated description
Granger Dam is a flood-control and water-management structure located on the San Gabriel River in Southern California.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Granger Dam
Target entity description: Granger Dam is a flood-control and water-management structure located on the San Gabriel River in Southern California.
  • A. Harriman Dam
    Harriman Dam is a hydroelectric dam in Vermont that impounds the Deerfield River to form Harriman Reservoir, one of the state’s largest lakes.
  • B. Jennings Randolph Dam
    Jennings Randolph Dam is a large earthen flood-control and water-supply dam on the North Branch Potomac River along the Maryland–West Virginia border in the United States.
  • C. Goodwin Dam
    Goodwin Dam is a concrete gravity diversion dam on California’s Stanislaus River that helps regulate river flow and supplies irrigation water to surrounding agricultural areas.
  • D. J. Percy Priest Dam
    J. Percy Priest Dam is a U.S. Army Corps of Engineers flood control and hydroelectric dam on the Stones River near Nashville, Tennessee.
  • E. La Grange Dam
    La Grange Dam is a historic diversion dam on California’s Tuolumne River that supplies irrigation water to agricultural lands in the San Joaquin Valley.
  • 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_69ca84e7506c819095cbde4ff16512bb completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cdb3d209ac8190b9bc9ff017a132da completed April 2, 2026, 12:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69d74fb63b7081909cb6faddd795ced6 completed April 9, 2026, 7:05 a.m.
NEDg Description generation batch_69d751122d208190abaa4fd72a07643b completed April 9, 2026, 7:11 a.m.
NED2 Entity disambiguation (via description) batch_69d751d4aa908190a825322ebf0066af completed April 9, 2026, 7:14 a.m.
Created at: March 30, 2026, 8:36 p.m.