Triple

T4885576
Position Surface form Disambiguated ID Type / Status
Subject Valles Marineris E109430 entity
Predicate hasSubfeature P25619 FINISHED
Object Ophir Chasma
Ophir Chasma is a large, steep-walled canyon on Mars forming part of the northern section of the vast Valles Marineris canyon system.
 E485881 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: Ophir Chasma | Statement: [Valles Marineris, hasSubfeature, Ophir Chasma]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Ophir Chasma
Context triple: [Valles Marineris, hasSubfeature, Ophir Chasma]
  • A. Candor Chasma
    Candor Chasma is a major canyon within Mars’s vast Valles Marineris system, characterized by its deep troughs and layered deposits that offer insights into the planet’s geological history.
  • B. Tithonium Chasma
    Tithonium Chasma is a large, steep-walled canyon forming the northwestern segment of Mars’s vast Valles Marineris system.
  • C. Ius Chasma
    Ius Chasma is a large, steep-walled canyon on Mars that forms part of the vast Valles Marineris rift system.
  • D. Ithaca Chasma
    Ithaca Chasma is a vast, linear canyon system that nearly encircles Saturn’s moon Tethys and is one of the largest known chasms in the solar system.
  • E. Melas Chasma
    Melas Chasma is a large, deep canyon within Mars’s Valles Marineris system, notable for its extensive layered deposits and evidence of past water-related activity.
  • 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: Ophir Chasma
Triple: [Valles Marineris, hasSubfeature, Ophir Chasma]
Generated description
Ophir Chasma is a large, steep-walled canyon on Mars forming part of the northern section of the vast Valles Marineris canyon system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Ophir Chasma
Target entity description: Ophir Chasma is a large, steep-walled canyon on Mars forming part of the northern section of the vast Valles Marineris canyon system.
  • A. Candor Chasma
    Candor Chasma is a major canyon within Mars’s vast Valles Marineris system, characterized by its deep troughs and layered deposits that offer insights into the planet’s geological history.
  • B. Tithonium Chasma
    Tithonium Chasma is a large, steep-walled canyon forming the northwestern segment of Mars’s vast Valles Marineris system.
  • C. Ius Chasma
    Ius Chasma is a large, steep-walled canyon on Mars that forms part of the vast Valles Marineris rift system.
  • D. Ithaca Chasma
    Ithaca Chasma is a vast, linear canyon system that nearly encircles Saturn’s moon Tethys and is one of the largest known chasms in the solar system.
  • E. Melas Chasma
    Melas Chasma is a large, deep canyon within Mars’s Valles Marineris system, notable for its extensive layered deposits and evidence of past water-related activity.
  • 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_69bd440f71348190b99938e59fb7f9a1 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6de3718881908521968fa6e6b444 completed March 20, 2026, 3:55 p.m.
NED1 Entity disambiguation (via context triple) batch_69be9235e7b8819084fd9eb7c794e0e3 completed March 21, 2026, 12:42 p.m.
NEDg Description generation batch_69be92f452d88190aa8bf3d4ca0a84f8 completed March 21, 2026, 12:45 p.m.
NED2 Entity disambiguation (via description) batch_69be934b31a8819094c59832ec182b2a completed March 21, 2026, 12:47 p.m.
Created at: March 20, 2026, 1:27 p.m.