Triple

T13312552
Position Surface form Disambiguated ID Type / Status
Subject Hengsteysee E317105 entity
Predicate nearbyStructure P2064 FINISHED
Object Koepchenwerk pumped-storage plant
The Koepchenwerk pumped-storage plant is a historic hydroelectric facility in North Rhine-Westphalia, Germany, known as one of the country’s earliest large-scale pumped-storage power stations for balancing electricity supply and demand.
 E1032874 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: Koepchenwerk pumped-storage plant | Statement: [Hengsteysee, nearbyStructure, Koepchenwerk pumped-storage plant]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Koepchenwerk pumped-storage plant
Context triple: [Hengsteysee, nearbyStructure, Koepchenwerk pumped-storage plant]
  • A. Walsum power station
    Walsum power station is a large coal-fired power plant in Duisburg, Germany, known for its prominent cooling tower and role in regional electricity and district heating supply.
  • B. Persenbeug-Gottsdorf Danube power plant
    The Persenbeug-Gottsdorf Danube power plant is a major run-of-river hydroelectric facility on the Danube River in Austria, providing renewable electricity and serving as an important component of the country’s power grid.
  • C. Kembs hydroelectric power station
    Kembs hydroelectric power station is a run-of-the-river hydroelectric facility on the Rhine in France, known as one of the oldest major plants harnessing the Grand Canal d’Alsace for power generation.
  • D. Okertalsperre power station
    Okertalsperre power station is a hydroelectric facility in Germany that generates electricity using water from the Okertalsperre reservoir in the Harz Mountains.
  • E. Lippendorf power station
    Lippendorf power station is a large lignite-fired power plant in Saxony, Germany, known for its significant electricity generation and associated environmental impact.
  • 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: Koepchenwerk pumped-storage plant
Triple: [Hengsteysee, nearbyStructure, Koepchenwerk pumped-storage plant]
Generated description
The Koepchenwerk pumped-storage plant is a historic hydroelectric facility in North Rhine-Westphalia, Germany, known as one of the country’s earliest large-scale pumped-storage power stations for balancing electricity supply and demand.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Koepchenwerk pumped-storage plant
Target entity description: The Koepchenwerk pumped-storage plant is a historic hydroelectric facility in North Rhine-Westphalia, Germany, known as one of the country’s earliest large-scale pumped-storage power stations for balancing electricity supply and demand.
  • A. Walsum power station
    Walsum power station is a large coal-fired power plant in Duisburg, Germany, known for its prominent cooling tower and role in regional electricity and district heating supply.
  • B. Persenbeug-Gottsdorf Danube power plant
    The Persenbeug-Gottsdorf Danube power plant is a major run-of-river hydroelectric facility on the Danube River in Austria, providing renewable electricity and serving as an important component of the country’s power grid.
  • C. Kembs hydroelectric power station
    Kembs hydroelectric power station is a run-of-the-river hydroelectric facility on the Rhine in France, known as one of the oldest major plants harnessing the Grand Canal d’Alsace for power generation.
  • D. Okertalsperre power station
    Okertalsperre power station is a hydroelectric facility in Germany that generates electricity using water from the Okertalsperre reservoir in the Harz Mountains.
  • E. Lippendorf power station
    Lippendorf power station is a large lignite-fired power plant in Saxony, Germany, known for its significant electricity generation and associated environmental impact.
  • 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_69d806b40ab4819094adf6c374f4811a completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d990f6d34c8190ba19dc2df7d42c22 completed April 11, 2026, 12:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69f716e7b9a48190a33b04df8ad45ed8 completed May 3, 2026, 9:35 a.m.
NEDg Description generation batch_69f717b868608190971c38f26b61cf28 completed May 3, 2026, 9:39 a.m.
NED2 Entity disambiguation (via description) batch_69f718705a44819084b97d35a10ee50d completed May 3, 2026, 9:42 a.m.
Created at: April 9, 2026, 9:29 p.m.