Triple

T6221476
Position Surface form Disambiguated ID Type / Status
Subject Churchill Falls Generating Station E139123 entity
Predicate hasDam P8736 FINISHED
Object Churchill Falls Main Dam
Churchill Falls Main Dam is the primary hydroelectric dam structure forming part of the Churchill Falls Generating Station complex in Labrador, Canada.
 E139123 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: Churchill Falls Main Dam | Statement: [Churchill Falls Generating Station, hasDam, Churchill Falls Main Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Churchill Falls Main Dam
Context triple: [Churchill Falls Generating Station, hasDam, Churchill Falls Main Dam]
  • A. Croton Falls Dam
    Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
  • B. Churchill Falls
    Churchill Falls is a remote company town in western Labrador, Canada, best known for its massive hydroelectric generating station on the Churchill River.
  • C. Upper Falls Dam
    Upper Falls Dam is a hydroelectric dam on the Spokane River in Spokane, Washington, that helps generate power from the Spokane Falls.
  • D. Churchill Falls Generating Station
    Churchill Falls Generating Station is one of the world’s largest underground hydroelectric power plants, located on the Churchill River in Labrador, Canada.
  • E. American Falls Dam
    American Falls Dam is a major irrigation and hydroelectric dam in southeastern Idaho that creates the American Falls Reservoir on the Snake 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: Churchill Falls Main Dam
Triple: [Churchill Falls Generating Station, hasDam, Churchill Falls Main Dam]
Generated description
Churchill Falls Main Dam is the primary hydroelectric dam structure forming part of the Churchill Falls Generating Station complex in Labrador, Canada.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Churchill Falls Main Dam
Target entity description: Churchill Falls Main Dam is the primary hydroelectric dam structure forming part of the Churchill Falls Generating Station complex in Labrador, Canada.
  • A. Croton Falls Dam
    Croton Falls Dam is a masonry gravity dam in Westchester County, New York, that forms the Croton Falls Reservoir as part of New York City’s water supply system.
  • B. Churchill Falls
    Churchill Falls is a remote company town in western Labrador, Canada, best known for its massive hydroelectric generating station on the Churchill River.
  • C. Upper Falls Dam
    Upper Falls Dam is a hydroelectric dam on the Spokane River in Spokane, Washington, that helps generate power from the Spokane Falls.
  • D. Churchill Falls Generating Station chosen
    Churchill Falls Generating Station is one of the world’s largest underground hydroelectric power plants, located on the Churchill River in Labrador, Canada.
  • E. American Falls Dam
    American Falls Dam is a major irrigation and hydroelectric dam in southeastern Idaho that creates the American Falls Reservoir on the Snake River.
  • F. None of above.

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_69c008aecb0c81909984b48f733ce8ae completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c062bcc2348190806ed8c98bdfbf3e completed March 22, 2026, 9:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69c20dc349b481909ce369a82fa96412 completed March 24, 2026, 4:06 a.m.
NEDg Description generation batch_69c214980bbc8190b188b3c821ea13ea completed March 24, 2026, 4:35 a.m.
NED2 Entity disambiguation (via description) batch_69c2157d43048190a0376cdc9024c5f9 completed March 24, 2026, 4:39 a.m.
Created at: March 22, 2026, 4:22 p.m.