Triple

T18773993

Position	Surface form	Disambiguated ID	Type / Status
Subject	Mercury Atmospheric and Surface Composition Spectrometer	`E459086`	entity
Predicate	aboardMission	`P52571`	FINISHED
Object	MErcury Surface, Space ENvironment, GEochemistry, and Ranging MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) was a NASA robotic spacecraft mission that orbited Mercury to study its surface, environment, geochemistry, and magnetic field.	`E100921`	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: MErcury Surface, Space ENvironment, GEochemistry, and Ranging | Statement: [Mercury Atmospheric and Surface Composition Spectrometer, aboardMission, MErcury Surface, Space ENvironment, GEochemistry, and Ranging]

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

Target entity: MErcury Surface, Space ENvironment, GEochemistry, and Ranging
Context triple: [Mercury Atmospheric and Surface Composition Spectrometer, aboardMission, MErcury Surface, Space ENvironment, GEochemistry, and Ranging]

A. Mercury Atmospheric and Surface Composition Spectrometer
The Mercury Atmospheric and Surface Composition Spectrometer is a scientific instrument on NASA’s MESSENGER spacecraft designed to analyze Mercury’s thin atmosphere and surface materials using ultraviolet and visible-light spectroscopy.
B. Mercury Planetary Orbiter
Mercury Planetary Orbiter is the European spacecraft module of the BepiColombo mission, designed to study Mercury’s surface, composition, and environment from orbit.
C. MESSENGER
MESSENGER was a NASA robotic spacecraft mission that orbited and studied the planet Mercury, providing the first comprehensive maps and detailed data about its surface, composition, and magnetic field.
D. Mercury Magnetospheric Orbiter
Mercury Magnetospheric Orbiter is a Japanese-built spacecraft designed to study Mercury’s magnetic field and space environment as part of the joint ESA–JAXA BepiColombo mission.
E. Mars Exospheric Neutral Composition Analyser
The Mars Exospheric Neutral Composition Analyser is a scientific instrument designed to study the composition and structure of Mars’ upper atmosphere and exosphere.
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: MErcury Surface, Space ENvironment, GEochemistry, and Ranging
Triple: [Mercury Atmospheric and Surface Composition Spectrometer, aboardMission, MErcury Surface, Space ENvironment, GEochemistry, and Ranging]

Generated description

MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) was a NASA robotic spacecraft mission that orbited Mercury to study its surface, environment, geochemistry, and magnetic field.

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

Target entity: MErcury Surface, Space ENvironment, GEochemistry, and Ranging
Target entity description: MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) was a NASA robotic spacecraft mission that orbited Mercury to study its surface, environment, geochemistry, and magnetic field.

A. Mercury Atmospheric and Surface Composition Spectrometer
The Mercury Atmospheric and Surface Composition Spectrometer is a scientific instrument on NASA’s MESSENGER spacecraft designed to analyze Mercury’s thin atmosphere and surface materials using ultraviolet and visible-light spectroscopy.
B. Mercury Planetary Orbiter
Mercury Planetary Orbiter is the European spacecraft module of the BepiColombo mission, designed to study Mercury’s surface, composition, and environment from orbit.
C. MESSENGER chosen
MESSENGER was a NASA robotic spacecraft mission that orbited and studied the planet Mercury, providing the first comprehensive maps and detailed data about its surface, composition, and magnetic field.
D. Mercury Magnetospheric Orbiter
Mercury Magnetospheric Orbiter is a Japanese-built spacecraft designed to study Mercury’s magnetic field and space environment as part of the joint ESA–JAXA BepiColombo mission.
E. Mars Exospheric Neutral Composition Analyser
The Mars Exospheric Neutral Composition Analyser is a scientific instrument designed to study the composition and structure of Mars’ upper atmosphere and exosphere.
F. None of above.

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_69d8d395dba0819087568404508590cb`	completed	April 10, 2026, 10:40 a.m.
NER	Named-entity recognition	`batch_69e5933888408190a21f9ac5b360d1eb`	completed	April 20, 2026, 2:45 a.m.
NED1	Entity disambiguation (via context triple)	`batch_6a053d46f1b88190b51ed8af4004c880`	completed	May 14, 2026, 3:11 a.m.
NEDg	Description generation	`batch_6a053ee038708190a242cb62fee15302`	completed	May 14, 2026, 3:17 a.m.
NED2	Entity disambiguation (via description)	`batch_6a053fba29208190ac0ee5a05522a7e2`	completed	May 14, 2026, 3:21 a.m.

Created at: April 10, 2026, 11:52 a.m.