Triple

T15328345
Position Surface form Disambiguated ID Type / Status
Subject Atacama Pathfinder Experiment E366469 entity
Predicate locatedAt P40 FINISHED
Object Llano de Chajnantor Observatory
The Llano de Chajnantor Observatory is a high-altitude astronomical site in Chile’s Atacama Desert that hosts major submillimeter and radio telescopes, including facilities like ALMA and APEX.
 E1150290 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: Llano de Chajnantor Observatory | Statement: [Atacama Pathfinder Experiment, locatedAt, Llano de Chajnantor Observatory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Llano de Chajnantor Observatory
Context triple: [Atacama Pathfinder Experiment, locatedAt, Llano de Chajnantor Observatory]
  • A. 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.
  • B. Calar Alto Observatory
    Calar Alto Observatory is a major astronomical observatory in southern Spain known for its large optical and infrared telescopes and international research collaborations.
  • C. La Silla Observatory
    La Silla Observatory is a major European Southern Observatory (ESO) facility in Chile known for its high-altitude optical telescopes that have contributed significantly to exoplanet and stellar research.
  • D. 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.
  • E. 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.
  • 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: Llano de Chajnantor Observatory
Triple: [Atacama Pathfinder Experiment, locatedAt, Llano de Chajnantor Observatory]
Generated description
The Llano de Chajnantor Observatory is a high-altitude astronomical site in Chile’s Atacama Desert that hosts major submillimeter and radio telescopes, including facilities like ALMA and APEX.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Llano de Chajnantor Observatory
Target entity description: The Llano de Chajnantor Observatory is a high-altitude astronomical site in Chile’s Atacama Desert that hosts major submillimeter and radio telescopes, including facilities like ALMA and APEX.
  • A. 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.
  • B. Calar Alto Observatory
    Calar Alto Observatory is a major astronomical observatory in southern Spain known for its large optical and infrared telescopes and international research collaborations.
  • C. La Silla Observatory
    La Silla Observatory is a major European Southern Observatory (ESO) facility in Chile known for its high-altitude optical telescopes that have contributed significantly to exoplanet and stellar research.
  • D. 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.
  • E. 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.
  • 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_69d85a121520819093dcce999fdefe1a completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e03dffd6f88190a0f031ee90c6a7d2 completed April 16, 2026, 1:40 a.m.
NED1 Entity disambiguation (via context triple) batch_69fef8af92a88190bd47f1a484f25eb1 completed May 9, 2026, 9:04 a.m.
NEDg Description generation batch_69fefd14736481908cf6b75b74a80f0f completed May 9, 2026, 9:23 a.m.
NED2 Entity disambiguation (via description) batch_69fefd887b6c8190a9ac41a7eadf94f1 completed May 9, 2026, 9:25 a.m.
Created at: April 10, 2026, 3:16 a.m.