Triple

T3695878
Position Surface form Disambiguated ID Type / Status
Subject Columbia River hydropower system E78455 entity
Predicate includesFacility P12416 FINISHED
Object Boundary Dam
Boundary Dam is a major hydroelectric facility on the Pend Oreille River in Washington State, known for its significant power generation capacity within the Columbia River hydropower network.
 E380461 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: Boundary Dam | Statement: [Columbia River hydropower system, includesFacility, Boundary Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Boundary Dam
Context triple: [Columbia River hydropower system, includesFacility, Boundary Dam]
  • A. 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.
  • B. Palisade Dam
    Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
  • C. San Luis Dam
    San Luis Dam is a major earthfill embankment dam in California that impounds the San Luis Reservoir, one of the largest off-stream storage reservoirs in the United States.
  • D. Red Rock Dam
    Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
  • E. San Andreas Dam
    San Andreas Dam is an earth-fill embankment dam in San Mateo County, California, that impounds San Andreas Lake as part of the Hetch Hetchy Regional Water System serving the San Francisco Bay Area.
  • 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: Boundary Dam
Triple: [Columbia River hydropower system, includesFacility, Boundary Dam]
Generated description
Boundary Dam is a major hydroelectric facility on the Pend Oreille River in Washington State, known for its significant power generation capacity within the Columbia River hydropower network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Boundary Dam
Target entity description: Boundary Dam is a major hydroelectric facility on the Pend Oreille River in Washington State, known for its significant power generation capacity within the Columbia River hydropower network.
  • A. 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.
  • B. Palisade Dam
    Palisade Dam is an irrigation and water storage structure located on the Sevier River in central Utah, supporting local agriculture and recreation.
  • C. San Luis Dam
    San Luis Dam is a major earthfill embankment dam in California that impounds the San Luis Reservoir, one of the largest off-stream storage reservoirs in the United States.
  • D. Red Rock Dam
    Red Rock Dam is a large flood-control and hydroelectric dam on the Des Moines River in central Iowa, forming Lake Red Rock as the state’s largest reservoir.
  • E. San Andreas Dam
    San Andreas Dam is an earth-fill embankment dam in San Mateo County, California, that impounds San Andreas Lake as part of the Hetch Hetchy Regional Water System serving the San Francisco Bay Area.
  • 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_69ad85e3b1888190abc983e06968696d completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc50f9ad88190a926042fa73d65dc completed March 8, 2026, 6:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69b4c3d4821081909ccd1b5789eb761e completed March 14, 2026, 2:11 a.m.
NEDg Description generation batch_69b4c512ea388190839fdcb3711f41a0 completed March 14, 2026, 2:16 a.m.
NED2 Entity disambiguation (via description) batch_69b4c5b4b5848190b799599b8d0a315a completed March 14, 2026, 2:19 a.m.
Created at: March 8, 2026, 3:26 p.m.