Triple

T20576739
Position Surface form Disambiguated ID Type / Status
Subject Pierre Méchain E505236 entity
Predicate discovered P412 FINISHED
Object Messier 102
Messier 102 is a disputed entry in Charles Messier’s catalog, commonly identified with the edge-on spiral galaxy NGC 5866 in the constellation Draco.
E1454492 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: Messier 102 | Statement: [Pierre Méchain, discovered, Messier 102]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Messier 102
Context triple: [Pierre Méchain, discovered, Messier 102]
  • A. Messier 108
    Messier 108 is a barred spiral galaxy viewed nearly edge-on from Earth, notable for its rich dust lanes and active star-forming regions.
  • B. Messier 101
    Messier 101 is a large, face-on spiral galaxy in the constellation Ursa Major, notable for its grand design structure and rich star-forming regions.
  • C. Messier 109
    Messier 109 is a barred spiral galaxy located in the constellation Ursa Major and is one of the brighter members of the Messier catalog.
  • D. Messier 63
    Messier 63, also known as the Sunflower Galaxy, is a bright, flocculent spiral galaxy in the constellation Canes Venatici and a prominent member of the M51 Group.
  • E. Messier 52
    Messier 52 is a young, rich open star cluster located in the constellation Cassiopeia, visible through small telescopes as a dense grouping of stars.
  • 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: Messier 102
Triple: [Pierre Méchain, discovered, Messier 102]
Generated description
Messier 102 is a disputed entry in Charles Messier’s catalog, commonly identified with the edge-on spiral galaxy NGC 5866 in the constellation Draco.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Messier 102
Target entity description: Messier 102 is a disputed entry in Charles Messier’s catalog, commonly identified with the edge-on spiral galaxy NGC 5866 in the constellation Draco.
  • A. Messier 108
    Messier 108 is a barred spiral galaxy viewed nearly edge-on from Earth, notable for its rich dust lanes and active star-forming regions.
  • B. Messier 101
    Messier 101 is a large, face-on spiral galaxy in the constellation Ursa Major, notable for its grand design structure and rich star-forming regions.
  • C. Messier 109
    Messier 109 is a barred spiral galaxy located in the constellation Ursa Major and is one of the brighter members of the Messier catalog.
  • D. Messier 63
    Messier 63, also known as the Sunflower Galaxy, is a bright, flocculent spiral galaxy in the constellation Canes Venatici and a prominent member of the M51 Group.
  • E. Messier 52
    Messier 52 is a young, rich open star cluster located in the constellation Cassiopeia, visible through small telescopes as a dense grouping of stars.
  • 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_69e0b4b721588190993ac7b0a9be2736 completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e6a90af3608190955d2c7950726178 completed April 20, 2026, 10:30 p.m.
NED1 Entity disambiguation (via context triple) batch_6a090aeae39881909a35767b9b57eab4 completed May 17, 2026, 12:25 a.m.
NEDg Description generation batch_6a090fb735cc8190a1dfea82584b7675 completed May 17, 2026, 12:45 a.m.
NED2 Entity disambiguation (via description) batch_6a091010ef9c8190862283f739b7027b completed May 17, 2026, 12:47 a.m.
Created at: April 16, 2026, 11:39 a.m.