Triple

T4411105

Position	Surface form	Disambiguated ID	Type / Status
Subject	W. M. Keck Observatory	`E94854`	entity
Predicate	hasInstrument	`P35`	FINISHED
Object	LRIS spectrograph The LRIS spectrograph is a powerful optical imaging and multi-object spectrograph used on one of the Keck telescopes for detailed astronomical observations across a wide wavelength range.	`E438731`	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: LRIS spectrograph | Statement: [W. M. Keck Observatory, hasInstrument, LRIS spectrograph]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: LRIS spectrograph
Context triple: [W. M. Keck Observatory, hasInstrument, LRIS spectrograph]

A. Boller and Chivens spectrograph
The Boller and Chivens spectrograph is an astronomical instrument designed for dispersing and analyzing light from celestial objects to study their physical and chemical properties.
B. Faint Object Spectrograph
The Faint Object Spectrograph was an early-generation Hubble Space Telescope instrument designed to obtain detailed spectra of very dim astronomical objects across a wide range of wavelengths.
C. GNIRS (Gemini Near-Infrared Spectrograph)
GNIRS (Gemini Near-Infrared Spectrograph) is a high-resolution near-infrared spectrograph used on the Gemini North telescope to study the composition, kinematics, and physical conditions of astronomical objects.
D. Goddard High Resolution Spectrograph
The Goddard High Resolution Spectrograph was a highly sensitive ultraviolet spectrograph aboard the Hubble Space Telescope used to study the composition, temperature, and motion of astronomical objects.
E. Fiber-fed Extended Range Optical Spectrograph
Fiber-fed Extended Range Optical Spectrograph is a high-resolution echelle spectrograph used in astronomy to obtain precise, wide-wavelength-range stellar spectra, notably for studies such as radial-velocity measurements and stellar characterization.
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: LRIS spectrograph
Triple: [W. M. Keck Observatory, hasInstrument, LRIS spectrograph]

Generated description

The LRIS spectrograph is a powerful optical imaging and multi-object spectrograph used on one of the Keck telescopes for detailed astronomical observations across a wide wavelength range.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: LRIS spectrograph
Target entity description: The LRIS spectrograph is a powerful optical imaging and multi-object spectrograph used on one of the Keck telescopes for detailed astronomical observations across a wide wavelength range.

A. Boller and Chivens spectrograph
The Boller and Chivens spectrograph is an astronomical instrument designed for dispersing and analyzing light from celestial objects to study their physical and chemical properties.
B. Faint Object Spectrograph
The Faint Object Spectrograph was an early-generation Hubble Space Telescope instrument designed to obtain detailed spectra of very dim astronomical objects across a wide range of wavelengths.
C. GNIRS (Gemini Near-Infrared Spectrograph)
GNIRS (Gemini Near-Infrared Spectrograph) is a high-resolution near-infrared spectrograph used on the Gemini North telescope to study the composition, kinematics, and physical conditions of astronomical objects.
D. Goddard High Resolution Spectrograph
The Goddard High Resolution Spectrograph was a highly sensitive ultraviolet spectrograph aboard the Hubble Space Telescope used to study the composition, temperature, and motion of astronomical objects.
E. Fiber-fed Extended Range Optical Spectrograph
Fiber-fed Extended Range Optical Spectrograph is a high-resolution echelle spectrograph used in astronomy to obtain precise, wide-wavelength-range stellar spectra, notably for studies such as radial-velocity measurements and stellar characterization.
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_69b34539638c8190abfea3eb29425210`	completed	March 12, 2026, 10:59 p.m.
NER	Named-entity recognition	`batch_69b354e4c58c8190b4190aad3095a1dd`	completed	March 13, 2026, 12:05 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69b5f6131de08190968259a0be73cd3f`	completed	March 14, 2026, 11:58 p.m.
NEDg	Description generation	`batch_69b5f76c8ea08190a6f6c81f0c3dcea7`	completed	March 15, 2026, 12:03 a.m.
NED2	Entity disambiguation (via description)	`batch_69b5f7e313f48190afb83123e3b24926`	completed	March 15, 2026, 12:05 a.m.

Created at: March 12, 2026, 11:29 p.m.