Triple

T22528881
Position Surface form Disambiguated ID Type / Status
Subject Kastraki Dam E556977 entity
Predicate hasReservoir P1025 FINISHED
Object Kastraki Reservoir
Kastraki Reservoir is an artificial lake in western Greece formed by the impoundment of the Achelous River behind the Kastraki Dam, used primarily for hydroelectric power generation and water management.
 E556977 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: Kastraki Reservoir | Statement: [Kastraki Dam, hasReservoir, Kastraki Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kastraki Reservoir
Context triple: [Kastraki Dam, hasReservoir, Kastraki Reservoir]
  • A. Polyphytos Reservoir
    Polyphytos Reservoir is a large artificial lake in northern Greece, created by damming the Aliakmon River and serving as a major source of hydroelectric power and water resources for the surrounding region.
  • B. Iskar Reservoir
    Iskar Reservoir is a large artificial lake in western Bulgaria that serves as a major source of drinking water, irrigation, and recreation for the Sofia region.
  • C. Búbal Reservoir
    Búbal Reservoir is an artificial lake in the Spanish Pyrenees, known for its scenic mountain setting and role in hydroelectric power generation and water regulation.
  • D. Salagou reservoir
    Salagou reservoir is an artificial lake in southern France known for its striking red-soil landscapes, outdoor recreation, and unique geological and ecological features.
  • E. Kastraki Dam
    Kastraki Dam is a major hydroelectric and water management dam in western Greece, built on the Acheloos River to generate power and regulate river flow.
  • 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: Kastraki Reservoir
Triple: [Kastraki Dam, hasReservoir, Kastraki Reservoir]
Generated description
Kastraki Reservoir is an artificial lake in western Greece formed by the impoundment of the Achelous River behind the Kastraki Dam, used primarily for hydroelectric power generation and water management.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Kastraki Reservoir
Target entity description: Kastraki Reservoir is an artificial lake in western Greece formed by the impoundment of the Achelous River behind the Kastraki Dam, used primarily for hydroelectric power generation and water management.
  • A. Polyphytos Reservoir
    Polyphytos Reservoir is a large artificial lake in northern Greece, created by damming the Aliakmon River and serving as a major source of hydroelectric power and water resources for the surrounding region.
  • B. Iskar Reservoir
    Iskar Reservoir is a large artificial lake in western Bulgaria that serves as a major source of drinking water, irrigation, and recreation for the Sofia region.
  • C. Búbal Reservoir
    Búbal Reservoir is an artificial lake in the Spanish Pyrenees, known for its scenic mountain setting and role in hydroelectric power generation and water regulation.
  • D. Salagou reservoir
    Salagou reservoir is an artificial lake in southern France known for its striking red-soil landscapes, outdoor recreation, and unique geological and ecological features.
  • E. Kastraki Dam chosen
    Kastraki Dam is a major hydroelectric and water management dam in western Greece, built on the Acheloos River to generate power and regulate river flow.
  • 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_69e11e57483c8190b0887c4f8ff26446 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f15ed4d4608190ba93bb54f15334a5 completed April 29, 2026, 1:28 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b7ebe91f48190916cf8c1cbe4ded1 completed May 18, 2026, 9:03 p.m.
NEDg Description generation batch_6a0b818bccd48190a5a6d2a4b48f48d7 completed May 18, 2026, 9:15 p.m.
NED2 Entity disambiguation (via description) batch_6a0b81ed765081909fe3499179a0393b completed May 18, 2026, 9:17 p.m.
Created at: April 16, 2026, 8:51 p.m.