Triple

T147115
Position Surface form Disambiguated ID Type / Status
Subject IMACS E3353 entity
Predicate mountedOn P3054 FINISHED
Object Nasmyth focus of Magellan Baade Telescope
The Nasmyth focus of the Magellan Baade Telescope is a stable, instrument-dedicated focal station located on the telescope’s altitude axis, designed to host large instruments like IMACS for high-quality astronomical observations.
E768 NE FINISHED

How this triple was built (5 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: Nasmyth focus of Magellan Baade Telescope | Statement: [IMACS, mountedOn, Nasmyth focus of Magellan Baade Telescope]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Nasmyth focus of Magellan Baade Telescope
Context triple: [IMACS, mountedOn, Nasmyth focus of Magellan Baade Telescope]
  • A. Baade Telescope
    The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
  • B. 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.
  • C. Warsaw Telescope
    The Warsaw Telescope is a 1.3-meter optical telescope at Las Campanas Observatory in Chile, widely used for large-scale astronomical surveys such as the OGLE project.
  • D. 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.
  • E. Magellan Echellette Spectrograph (MagE)
    Magellan Echellette Spectrograph (MagE) is a medium-resolution optical echellette spectrograph designed for wide wavelength coverage and efficient spectroscopy of faint astronomical sources.
  • 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: Nasmyth focus of Magellan Baade Telescope
Triple: [IMACS, mountedOn, Nasmyth focus of Magellan Baade Telescope]
Generated description
The Nasmyth focus of the Magellan Baade Telescope is a stable, instrument-dedicated focal station located on the telescope’s altitude axis, designed to host large instruments like IMACS for high-quality astronomical observations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Nasmyth focus of Magellan Baade Telescope
Target entity description: The Nasmyth focus of the Magellan Baade Telescope is a stable, instrument-dedicated focal station located on the telescope’s altitude axis, designed to host large instruments like IMACS for high-quality astronomical observations.
  • A. Baade Telescope chosen
    The Baade Telescope is one of the twin 6.5-meter Magellan optical telescopes used for cutting-edge astronomical research in Chile.
  • B. 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.
  • C. Warsaw Telescope
    The Warsaw Telescope is a 1.3-meter optical telescope at Las Campanas Observatory in Chile, widely used for large-scale astronomical surveys such as the OGLE project.
  • D. 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.
  • E. Magellan Echellette Spectrograph (MagE)
    Magellan Echellette Spectrograph (MagE) is a medium-resolution optical echellette spectrograph designed for wide wavelength coverage and efficient spectroscopy of faint astronomical sources.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: mountedOn
Context triple: [IMACS, mountedOn, Nasmyth focus of Magellan Baade Telescope]
  • A. builtOn
    Indicates that one entity is constructed, developed, or established using another entity as its base, foundation, or underlying platform.
  • B. bindingOn
    Indicates that one party is legally or formally obligated to follow, accept, or be governed by a decision, rule, or agreement established by another.
  • C. installedAt chosen
    Indicates that something has been set up, placed, or put into operation at a specific location or site.
  • D. addedTo
    Indicates that one entity has been included or incorporated into another entity, typically as a new component, member, or element.
  • E. isOn
    Indicates that one entity is physically positioned above and in contact with the top surface of another entity.
  • F. None of above.

Provenance (6 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_69a252868de4819080e21c9938bfe8b6 completed Feb. 28, 2026, 2:27 a.m.
NER Named-entity recognition batch_69a258808ff08190a06b6206f635612b completed Feb. 28, 2026, 2:52 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2c2763ce481908c12046de9003a84 completed Feb. 28, 2026, 10:24 a.m.
NEDg Description generation batch_69a2c2f02810819092e3263ac91b5fe3 completed Feb. 28, 2026, 10:26 a.m.
NED2 Entity disambiguation (via description) batch_69a2c369498481908c4213b04aea9c97 completed Feb. 28, 2026, 10:28 a.m.
PD Predicate disambiguation batch_69a256580c2c8190beecca60ca8595f3 completed Feb. 28, 2026, 2:43 a.m.
Created at: Feb. 28, 2026, 2:31 a.m.