Triple

T21720303
Position Surface form Disambiguated ID Type / Status
Subject Medusa Nebula E536136 entity
Predicate hasAlternativeName P39 FINISHED
Object Sh2-274
Sh2-274, also known as the Medusa Nebula, is a large, faint planetary nebula in the constellation Gemini characterized by its filamentary, serpentine appearance.
 E1497929 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: Sh2-274 | Statement: [Medusa Nebula, hasAlternativeName, Sh2-274]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sh2-274
Context triple: [Medusa Nebula, hasAlternativeName, Sh2-274]
  • A. Sh2-25
    Sh2-25 is a compact emission nebula in the constellation Sagittarius, cataloged in the Sharpless catalog of H II regions.
  • B. Sh2-298
    Sh2-298 is an emission nebula in the constellation Canis Major, popularly known as Thor’s Helmet for its distinctive helmet-like shape surrounding a massive Wolf–Rayet star.
  • C. Sh2-205
    Sh2-205 is a faint emission nebula cataloged in the Sharpless catalog, located in the constellation Camelopardalis.
  • D. Sh2-202
    Sh2-202 is a large, faint emission nebula and H II region located in the constellation Camelopardalis.
  • E. Sh2-184
    Sh2-184, commonly known as the Pacman Nebula, is an emission nebula in the constellation Cassiopeia notable for its distinctive shape resembling the classic video game character.
  • 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: Sh2-274
Triple: [Medusa Nebula, hasAlternativeName, Sh2-274]
Generated description
Sh2-274, also known as the Medusa Nebula, is a large, faint planetary nebula in the constellation Gemini characterized by its filamentary, serpentine appearance.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Sh2-274
Target entity description: Sh2-274, also known as the Medusa Nebula, is a large, faint planetary nebula in the constellation Gemini characterized by its filamentary, serpentine appearance.
  • A. Sh2-25
    Sh2-25 is a compact emission nebula in the constellation Sagittarius, cataloged in the Sharpless catalog of H II regions.
  • B. Sh2-298
    Sh2-298 is an emission nebula in the constellation Canis Major, popularly known as Thor’s Helmet for its distinctive helmet-like shape surrounding a massive Wolf–Rayet star.
  • C. Sh2-205
    Sh2-205 is a faint emission nebula cataloged in the Sharpless catalog, located in the constellation Camelopardalis.
  • D. Sh2-202
    Sh2-202 is a large, faint emission nebula and H II region located in the constellation Camelopardalis.
  • E. Sh2-184
    Sh2-184, commonly known as the Pacman Nebula, is an emission nebula in the constellation Cassiopeia notable for its distinctive shape resembling the classic video game character.
  • 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_69e0c46c6dd88190a595375fa6ebd701 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69efd96de818819084c268d4775a8e3a completed April 27, 2026, 9:47 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a24b79c108190af57665372a88c2c completed May 17, 2026, 8:27 p.m.
NEDg Description generation batch_6a0a2698fb408190b0ad72d4fdb74ded completed May 17, 2026, 8:35 p.m.
NED2 Entity disambiguation (via description) batch_6a0a274893d8819084c55439fe1eb686 completed May 17, 2026, 8:38 p.m.
Created at: April 16, 2026, 6:47 p.m.