Triple

T17917187
Position Surface form Disambiguated ID Type / Status
Subject Lozoya River E447961 entity
Predicate hasReservoir P1025 FINISHED
Object El Villar Reservoir
El Villar Reservoir is a historic dam and water reservoir on the Lozoya River in Spain, known for being one of the earliest large concrete arch dams in the country.
E1301055 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: El Villar Reservoir | Statement: [Lozoya River, hasReservoir, El Villar Reservoir]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: El Villar Reservoir
Context triple: [Lozoya River, hasReservoir, El Villar Reservoir]
  • A. Burguillo Reservoir
    Burguillo Reservoir is a major artificial lake and dam in central Spain, known for regulating water from the Alberche River and serving as a popular site for recreation and hydroelectric power.
  • B. El Atazar Reservoir
    El Atazar Reservoir is a major water storage and supply reservoir in the Community of Madrid, Spain, known for its large capacity and role in providing drinking water to the region.
  • C. Pilarcitos Reservoir
    Pilarcitos Reservoir is a key drinking water storage reservoir on the San Francisco Peninsula that helps supply water to the San Francisco Bay Area.
  • D. Itoiz Reservoir
    Itoiz Reservoir is a large artificial lake in Navarre, northern Spain, created by damming the Irati River to provide water supply, irrigation, and hydroelectric power within the Ebro basin.
  • E. Cornalvo Reservoir
    Cornalvo Reservoir is an ancient Roman-built dam and water reservoir in Extremadura, Spain, renowned for its historical engineering and role in supplying water to the city of Mérida.
  • 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: El Villar Reservoir
Triple: [Lozoya River, hasReservoir, El Villar Reservoir]
Generated description
El Villar Reservoir is a historic dam and water reservoir on the Lozoya River in Spain, known for being one of the earliest large concrete arch dams in the country.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: El Villar Reservoir
Target entity description: El Villar Reservoir is a historic dam and water reservoir on the Lozoya River in Spain, known for being one of the earliest large concrete arch dams in the country.
  • A. Burguillo Reservoir
    Burguillo Reservoir is a major artificial lake and dam in central Spain, known for regulating water from the Alberche River and serving as a popular site for recreation and hydroelectric power.
  • B. El Atazar Reservoir
    El Atazar Reservoir is a major water storage and supply reservoir in the Community of Madrid, Spain, known for its large capacity and role in providing drinking water to the region.
  • C. Pilarcitos Reservoir
    Pilarcitos Reservoir is a key drinking water storage reservoir on the San Francisco Peninsula that helps supply water to the San Francisco Bay Area.
  • D. Itoiz Reservoir
    Itoiz Reservoir is a large artificial lake in Navarre, northern Spain, created by damming the Irati River to provide water supply, irrigation, and hydroelectric power within the Ebro basin.
  • E. Cornalvo Reservoir
    Cornalvo Reservoir is an ancient Roman-built dam and water reservoir in Extremadura, Spain, renowned for its historical engineering and role in supplying water to the city of Mérida.
  • 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_69d8b9f6d394819082a6d69fd1e23d2f completed April 10, 2026, 8:51 a.m.
NER Named-entity recognition batch_69e4a30778fc81908b5b2e308fb158a5 completed April 19, 2026, 9:40 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0343101e5c8190af3d6cf187de29eb completed May 12, 2026, 3:11 p.m.
NEDg Description generation batch_6a0344089c0c819082894927bbc03d2f completed May 12, 2026, 3:15 p.m.
NED2 Entity disambiguation (via description) batch_6a03448fb9548190b34e8ab72688d268 completed May 12, 2026, 3:17 p.m.
Created at: April 10, 2026, 10:20 a.m.