Triple

T7525958
Position Surface form Disambiguated ID Type / Status
Subject ESO Directorate of Operations E177891 entity
Predicate operatesIn P82 FINISHED
Object ELT site at Cerro Armazones
The ELT site at Cerro Armazones is the high-altitude Chilean mountaintop location being developed to host the European Southern Observatory’s Extremely Large Telescope, one of the world’s most powerful ground-based optical/infrared observatories.
E669644 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: ELT site at Cerro Armazones | Statement: [ESO Directorate of Operations, operatesIn, ELT site at Cerro Armazones]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: ELT site at Cerro Armazones
Context triple: [ESO Directorate of Operations, operatesIn, ELT site at Cerro Armazones]
  • A. Paranal Observatory
    Paranal Observatory is a major astronomical research facility in Chile’s Atacama Desert that hosts the European Southern Observatory’s Very Large Telescope array.
  • B. Cerro Tololo Inter-American Observatory
    Cerro Tololo Inter-American Observatory is a major astronomical observatory complex in northern Chile that hosts multiple world-class telescopes used for cutting-edge research on the universe.
  • C. Carlos Sánchez Telescope
    The Carlos Sánchez Telescope is a mid-sized infrared astronomical telescope located at Spain’s Teide Observatory on the island of Tenerife.
  • D. ESO La Silla Paranal Observatory
    ESO La Silla Paranal Observatory is a major European Southern Observatory facility in Chile that operates several world-class optical and infrared telescopes, including those at La Silla and Paranal.
  • E. Sierra Nevada Observatory
    Sierra Nevada Observatory is a high-altitude astronomical observatory in the Sierra Nevada mountains of Spain, equipped with modern telescopes for professional research in areas such as stellar and planetary astrophysics.
  • 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: ELT site at Cerro Armazones
Triple: [ESO Directorate of Operations, operatesIn, ELT site at Cerro Armazones]
Generated description
The ELT site at Cerro Armazones is the high-altitude Chilean mountaintop location being developed to host the European Southern Observatory’s Extremely Large Telescope, one of the world’s most powerful ground-based optical/infrared observatories.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: ELT site at Cerro Armazones
Target entity description: The ELT site at Cerro Armazones is the high-altitude Chilean mountaintop location being developed to host the European Southern Observatory’s Extremely Large Telescope, one of the world’s most powerful ground-based optical/infrared observatories.
  • A. Paranal Observatory
    Paranal Observatory is a major astronomical research facility in Chile’s Atacama Desert that hosts the European Southern Observatory’s Very Large Telescope array.
  • B. Cerro Tololo Inter-American Observatory
    Cerro Tololo Inter-American Observatory is a major astronomical observatory complex in northern Chile that hosts multiple world-class telescopes used for cutting-edge research on the universe.
  • C. Carlos Sánchez Telescope
    The Carlos Sánchez Telescope is a mid-sized infrared astronomical telescope located at Spain’s Teide Observatory on the island of Tenerife.
  • D. ESO La Silla Paranal Observatory
    ESO La Silla Paranal Observatory is a major European Southern Observatory facility in Chile that operates several world-class optical and infrared telescopes, including those at La Silla and Paranal.
  • E. Sierra Nevada Observatory
    Sierra Nevada Observatory is a high-altitude astronomical observatory in the Sierra Nevada mountains of Spain, equipped with modern telescopes for professional research in areas such as stellar and planetary astrophysics.
  • 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_69c69f29bf3081909a146aec7755f185 completed March 27, 2026, 3:15 p.m.
NER Named-entity recognition batch_69c6f7c7ac5c8190bbf9befdff791de0 completed March 27, 2026, 9:33 p.m.
NED1 Entity disambiguation (via context triple) batch_69c84635feb881908930bf355ac56a47 completed March 28, 2026, 9:20 p.m.
NEDg Description generation batch_69c846d0b1348190bc2bf23e75c535a9 completed March 28, 2026, 9:23 p.m.
NED2 Entity disambiguation (via description) batch_69c84748b8988190b4f85c253ea9e403 completed March 28, 2026, 9:25 p.m.
Created at: March 27, 2026, 3:46 p.m.