Triple

T4017991

Position	Surface form	Disambiguated ID	Type / Status
Subject	Mars Express	`E91209`	entity
Predicate	carriesInstrument	`P53466`	FINISHED
Object	Mars Advanced Radar for Subsurface and Ionosphere Sounding Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) is a radar instrument designed to probe beneath the Martian surface and study its ionosphere by transmitting low-frequency radio waves from orbit.	`E405589`	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: Mars Advanced Radar for Subsurface and Ionosphere Sounding | Statement: [Mars Express, carriesInstrument, Mars Advanced Radar for Subsurface and Ionosphere Sounding]

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

Target entity: Mars Advanced Radar for Subsurface and Ionosphere Sounding
Context triple: [Mars Express, carriesInstrument, Mars Advanced Radar for Subsurface and Ionosphere Sounding]

A. Mars Environmental Dynamics Analyzer
The Mars Environmental Dynamics Analyzer is a suite of weather instruments aboard NASA's Perseverance rover that measures atmospheric conditions and dust on the Martian surface.
B. 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.
C. InSight Mars lander
The InSight Mars lander was a NASA robotic mission designed to study the interior structure and seismic activity of Mars to better understand the formation and evolution of rocky planets.
D. Methane Sensor for Mars
Methane Sensor for Mars is a scientific instrument aboard India’s Mars Orbiter Mission designed to detect and measure methane in the Martian atmosphere.
E. Moon Mineralogy Mapper
Moon Mineralogy Mapper is a NASA-designed imaging spectrometer that mapped the Moon’s surface composition in detail, notably helping confirm the presence of water and hydroxyl on the lunar surface.
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: Mars Advanced Radar for Subsurface and Ionosphere Sounding
Triple: [Mars Express, carriesInstrument, Mars Advanced Radar for Subsurface and Ionosphere Sounding]

Generated description

Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) is a radar instrument designed to probe beneath the Martian surface and study its ionosphere by transmitting low-frequency radio waves from orbit.

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

Target entity: Mars Advanced Radar for Subsurface and Ionosphere Sounding
Target entity description: Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) is a radar instrument designed to probe beneath the Martian surface and study its ionosphere by transmitting low-frequency radio waves from orbit.

A. Mars Environmental Dynamics Analyzer
The Mars Environmental Dynamics Analyzer is a suite of weather instruments aboard NASA's Perseverance rover that measures atmospheric conditions and dust on the Martian surface.
B. 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.
C. InSight Mars lander
The InSight Mars lander was a NASA robotic mission designed to study the interior structure and seismic activity of Mars to better understand the formation and evolution of rocky planets.
D. Methane Sensor for Mars
Methane Sensor for Mars is a scientific instrument aboard India’s Mars Orbiter Mission designed to detect and measure methane in the Martian atmosphere.
E. Moon Mineralogy Mapper
Moon Mineralogy Mapper is a NASA-designed imaging spectrometer that mapped the Moon’s surface composition in detail, notably helping confirm the presence of water and hydroxyl on the lunar surface.
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_69aed9618b04819081750d979d2af098`	completed	March 9, 2026, 2:29 p.m.
NER	Named-entity recognition	`batch_69af01994b0c8190b34af36acadad5c6`	completed	March 9, 2026, 5:21 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b54c792d948190aed89f2a52d65688`	completed	March 14, 2026, 11:54 a.m.
NEDg	Description generation	`batch_69b54cf4bee08190917836fe16f02403`	completed	March 14, 2026, 11:56 a.m.
NED2	Entity disambiguation (via description)	`batch_69b54d853f3881909f6ab8b83ad0e064`	completed	March 14, 2026, 11:59 a.m.

Created at: March 9, 2026, 3:35 p.m.