Triple

T19382100
Position Surface form Disambiguated ID Type / Status
Subject MER-B E484836 entity
Predicate traveledTo P2694 FINISHED
Object Opportunity landing site (Challenger Memorial Station)
Opportunity landing site (Challenger Memorial Station) is the designated Martian location in Meridiani Planum where NASA’s Opportunity rover touched down and began its exploration mission.
 E1372549 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: Opportunity landing site (Challenger Memorial Station) | Statement: [MER-B, traveledTo, Opportunity landing site (Challenger Memorial Station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Opportunity landing site (Challenger Memorial Station)
Context triple: [MER-B, traveledTo, Opportunity landing site (Challenger Memorial Station)]
  • A. Columbia Hills on Mars
    Columbia Hills on Mars is a range of hills within Gusev Crater explored by NASA’s Spirit rover, named in honor of the Space Shuttle Columbia and its crew.
  • B. Mars Climate Station
    Mars Climate Station is a scientific instrument aboard China’s Zhurong Mars rover designed to monitor the Martian atmosphere and weather conditions.
  • C. Opportunity rover
    Opportunity rover was a NASA robotic rover that conducted a long-duration geological and atmospheric exploration mission on the surface of Mars as part of the Mars Exploration Rover program.
  • D. Phoenix lander
    The Phoenix lander was a NASA spacecraft that successfully touched down in Mars’ polar region in 2008 to study the planet’s water ice and soil chemistry in search of habitable conditions.
  • E. Mars Exploration Rover mission
    The Mars Exploration Rover mission was a NASA program that sent the twin rovers Spirit and Opportunity to Mars to study the planet’s geology and past water activity, achieving far longer and more scientifically productive operations than originally planned.
  • 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: Opportunity landing site (Challenger Memorial Station)
Triple: [MER-B, traveledTo, Opportunity landing site (Challenger Memorial Station)]
Generated description
Opportunity landing site (Challenger Memorial Station) is the designated Martian location in Meridiani Planum where NASA’s Opportunity rover touched down and began its exploration mission.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Opportunity landing site (Challenger Memorial Station)
Target entity description: Opportunity landing site (Challenger Memorial Station) is the designated Martian location in Meridiani Planum where NASA’s Opportunity rover touched down and began its exploration mission.
  • A. Columbia Hills on Mars
    Columbia Hills on Mars is a range of hills within Gusev Crater explored by NASA’s Spirit rover, named in honor of the Space Shuttle Columbia and its crew.
  • B. Mars Climate Station
    Mars Climate Station is a scientific instrument aboard China’s Zhurong Mars rover designed to monitor the Martian atmosphere and weather conditions.
  • C. Opportunity rover
    Opportunity rover was a NASA robotic rover that conducted a long-duration geological and atmospheric exploration mission on the surface of Mars as part of the Mars Exploration Rover program.
  • D. Phoenix lander
    The Phoenix lander was a NASA spacecraft that successfully touched down in Mars’ polar region in 2008 to study the planet’s water ice and soil chemistry in search of habitable conditions.
  • E. Mars Exploration Rover mission
    The Mars Exploration Rover mission was a NASA program that sent the twin rovers Spirit and Opportunity to Mars to study the planet’s geology and past water activity, achieving far longer and more scientifically productive operations than originally planned.
  • 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_69d8e8d460d88190abf0591c5c9d2b0c completed April 10, 2026, 12:11 p.m.
NER Named-entity recognition batch_69e61a6075a88190aed7afa3b8fd3021 completed April 20, 2026, 12:21 p.m.
NED1 Entity disambiguation (via context triple) batch_6a072422e01481908d0e6233017be7f6 completed May 15, 2026, 1:48 p.m.
NEDg Description generation batch_6a072550bf2881909ceb6b91b597762b completed May 15, 2026, 1:53 p.m.
NED2 Entity disambiguation (via description) batch_6a07272e260c8190aa370620d576b830 completed May 15, 2026, 2:01 p.m.
Created at: April 10, 2026, 1:35 p.m.