Triple

T673826
Position Surface form Disambiguated ID Type / Status
Subject Gemini South Observatory E13035 entity
Predicate locatedOn P40 FINISHED
Object Cerro Pachón
Cerro Pachón is a high-altitude mountain peak in the Chilean Andes renowned as a premier site for professional astronomical observatories due to its clear, dry skies and stable atmospheric conditions.
 E83732 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: Cerro Pachón | Statement: [Gemini South Observatory, locatedOn, Cerro Pachón]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Cerro Pachón
Context triple: [Gemini South Observatory, locatedOn, Cerro Pachón]
  • A. La Silla mountain
    La Silla mountain is a peak in Chile’s Atacama Desert that hosts major astronomical facilities and is known for its exceptionally clear, dark skies.
  • B. 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.
  • C. 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.
  • D. Cerro de la Silla
    Cerro de la Silla is a distinctive saddle-shaped mountain and iconic natural symbol overlooking the city of Monterrey in northeastern Mexico.
  • E. Mulhacén
    Mulhacén is the tallest mountain in mainland Spain, located in the Sierra Nevada range of the Iberian Peninsula.
  • 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: Cerro Pachón
Triple: [Gemini South Observatory, locatedOn, Cerro Pachón]
Generated description
Cerro Pachón is a high-altitude mountain peak in the Chilean Andes renowned as a premier site for professional astronomical observatories due to its clear, dry skies and stable atmospheric conditions.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Cerro Pachón
Target entity description: Cerro Pachón is a high-altitude mountain peak in the Chilean Andes renowned as a premier site for professional astronomical observatories due to its clear, dry skies and stable atmospheric conditions.
  • A. La Silla mountain
    La Silla mountain is a peak in Chile’s Atacama Desert that hosts major astronomical facilities and is known for its exceptionally clear, dark skies.
  • B. 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.
  • C. 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.
  • D. Cerro de la Silla
    Cerro de la Silla is a distinctive saddle-shaped mountain and iconic natural symbol overlooking the city of Monterrey in northeastern Mexico.
  • E. Mulhacén
    Mulhacén is the tallest mountain in mainland Spain, located in the Sierra Nevada range of the Iberian Peninsula.
  • 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_69a4933d3bf88190972041cd8cf143b9 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a4a02537d08190942ee5fc8c50610a completed March 1, 2026, 8:23 p.m.
NED1 Entity disambiguation (via context triple) batch_69a5c39f3e1481908f395cdb19cfd2fc completed March 2, 2026, 5:06 p.m.
NEDg Description generation batch_69a5c42d4a0481908af4a71b4625c130 completed March 2, 2026, 5:09 p.m.
NED2 Entity disambiguation (via description) batch_69a5ce16df088190850a3b851558eba8 completed March 2, 2026, 5:51 p.m.
Created at: March 1, 2026, 7:36 p.m.