Triple

T10087
Position Surface form Disambiguated ID Type / Status
Subject Coquimbo Region E204 entity
Predicate hasObservatory P105 FINISHED
Object 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.
E12020 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 Tololo Inter-American Observatory | Statement: [Coquimbo Region, hasObservatory, Cerro Tololo Inter-American Observatory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cerro Tololo Inter-American Observatory
Context triple: [Coquimbo Region, hasObservatory, Cerro Tololo Inter-American Observatory]
  • A. 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.
  • B. du Pont Telescope
    The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
  • C. Las Campanas Observatory
    Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
  • D. Swope Telescope
    The Swope Telescope is a 1-meter-class optical telescope at Chile’s Las Campanas Observatory, known for its role in supernova and transient object discoveries.
  • E. Giant Magellan Telescope
    The Giant Magellan Telescope is a next-generation, extremely large ground-based optical and infrared telescope designed to achieve unprecedented resolution for astronomical observations.
  • 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 Tololo Inter-American Observatory
Triple: [Coquimbo Region, hasObservatory, Cerro Tololo Inter-American Observatory]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cerro Tololo Inter-American Observatory
Target entity description: 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.
  • A. 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.
  • B. du Pont Telescope
    The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
  • C. Las Campanas Observatory
    Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
  • D. Swope Telescope
    The Swope Telescope is a 1-meter-class optical telescope at Chile’s Las Campanas Observatory, known for its role in supernova and transient object discoveries.
  • E. Giant Magellan Telescope
    The Giant Magellan Telescope is a next-generation, extremely large ground-based optical and infrared telescope designed to achieve unprecedented resolution for astronomical observations.
  • 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_69a23bb612708190b09f25385e4b63d1 completed Feb. 28, 2026, 12:49 a.m.
NER Named-entity recognition batch_69a2465b2cf881908bf61c461e04cf6a completed Feb. 28, 2026, 1:35 a.m.
NED1 Entity disambiguation (via context triple) batch_69a284f6d1a88190b5e0adeb36cce8cd completed Feb. 28, 2026, 6:02 a.m.
NEDg Description generation batch_69a28596f88c81908467f780192a350b completed Feb. 28, 2026, 6:05 a.m.
NED2 Entity disambiguation (via description) batch_69a2862ebdc4819086328fefd930d795 completed Feb. 28, 2026, 6:07 a.m.
Created at: Feb. 28, 2026, 12:54 a.m.