Triple

T16654103
Position Surface form Disambiguated ID Type / Status
Subject Megget Reservoir E404680 entity
Predicate hasStructure P35 FINISHED
Object Megget Dam
Megget Dam is a major earthfill embankment dam in the Scottish Borders that impounds the Megget Reservoir, an important source of drinking water for Edinburgh and the surrounding region.
E1251849 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: Megget Dam | Statement: [Megget Reservoir, hasStructure, Megget Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Megget Dam
Context triple: [Megget Reservoir, hasStructure, Megget Dam]
  • A. Tieton Dam
    Tieton Dam is a concrete multiple-arch dam in central Washington State that provides irrigation water storage, flood control, and hydroelectric power as part of the U.S. Bureau of Reclamation’s Yakima River basin developments.
  • B. Kerr Dam
    Kerr Dam is a large hydroelectric and flood-control structure on the Roanoke River that creates Kerr Lake (also known as Buggs Island Lake) along the Virginia–North Carolina border.
  • C. Almanor Dam
    Almanor Dam is a large earthfill hydroelectric dam in Plumas County, California, that impounds the North Fork Feather River to form Lake Almanor.
  • D. Petenwell Dam
    Petenwell Dam is a hydroelectric dam in central Wisconsin that creates Petenwell Lake, one of the state’s largest reservoirs, on the Wisconsin River.
  • E. Duncan Dam
    Duncan Dam is a major hydroelectric and flood-control dam on the Duncan River in British Columbia, forming part of the Columbia River Treaty system.
  • 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: Megget Dam
Triple: [Megget Reservoir, hasStructure, Megget Dam]
Generated description
Megget Dam is a major earthfill embankment dam in the Scottish Borders that impounds the Megget Reservoir, an important source of drinking water for Edinburgh and the surrounding region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Megget Dam
Target entity description: Megget Dam is a major earthfill embankment dam in the Scottish Borders that impounds the Megget Reservoir, an important source of drinking water for Edinburgh and the surrounding region.
  • A. Tieton Dam
    Tieton Dam is a concrete multiple-arch dam in central Washington State that provides irrigation water storage, flood control, and hydroelectric power as part of the U.S. Bureau of Reclamation’s Yakima River basin developments.
  • B. Kerr Dam
    Kerr Dam is a large hydroelectric and flood-control structure on the Roanoke River that creates Kerr Lake (also known as Buggs Island Lake) along the Virginia–North Carolina border.
  • C. Almanor Dam
    Almanor Dam is a large earthfill hydroelectric dam in Plumas County, California, that impounds the North Fork Feather River to form Lake Almanor.
  • D. Petenwell Dam
    Petenwell Dam is a hydroelectric dam in central Wisconsin that creates Petenwell Lake, one of the state’s largest reservoirs, on the Wisconsin River.
  • E. Duncan Dam
    Duncan Dam is a major hydroelectric and flood-control dam on the Duncan River in British Columbia, forming part of the Columbia River Treaty system.
  • 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_69d8838b5fbc81908c6575c132b82e80 completed April 10, 2026, 4:58 a.m.
NER Named-entity recognition batch_69e37bf92de48190aaae3e93039b17f3 completed April 18, 2026, 12:41 p.m.
NED1 Entity disambiguation (via context triple) batch_6a014136275c819084da2756632e0f48 completed May 11, 2026, 2:38 a.m.
NEDg Description generation batch_6a0141cadb6c8190b2832e12fd431b0b completed May 11, 2026, 2:41 a.m.
NED2 Entity disambiguation (via description) batch_6a014264ff8881909722c262c3f85e1f completed May 11, 2026, 2:43 a.m.
Created at: April 10, 2026, 5:18 a.m.