Triple

T20183884
Position Surface form Disambiguated ID Type / Status
Subject Cepheus OB2 association E492802 entity
Predicate hasSubgroup P747 FINISHED
Object Cep OB2a
Cep OB2a is a stellar subgroup within the Cepheus OB2 association, consisting primarily of young, massive stars formed from the same molecular cloud in the Cepheus constellation.
E1415828 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: Cep OB2a | Statement: [Cepheus OB2 association, hasSubgroup, Cep OB2a]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cep OB2a
Context triple: [Cepheus OB2 association, hasSubgroup, Cep OB2a]
  • A. Cygnus OB2 #5
    Cygnus OB2 #5 is a massive, luminous multiple star system in the Cygnus constellation, notable for its strong stellar winds and role as a prominent member of the Cygnus OB2 stellar association.
  • B. Cygnus OB2 #8A
    Cygnus OB2 #8A is a massive, luminous binary star system within the Cygnus OB2 stellar association, notable for its strong stellar winds and intense radiation.
  • C. Cygnus OB2 association
    Cygnus OB2 association is a massive, young stellar grouping rich in hot, luminous O- and B-type stars located in the constellation Cygnus.
  • D. Carina OB1 association
    Carina OB1 association is a massive, young stellar association in the Carina constellation that hosts numerous hot, luminous OB stars and rich star-forming regions.
  • E. Sh2-205
    Sh2-205 is a faint emission nebula cataloged in the Sharpless catalog, located in the constellation Camelopardalis.
  • 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: Cep OB2a
Triple: [Cepheus OB2 association, hasSubgroup, Cep OB2a]
Generated description
Cep OB2a is a stellar subgroup within the Cepheus OB2 association, consisting primarily of young, massive stars formed from the same molecular cloud in the Cepheus constellation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cep OB2a
Target entity description: Cep OB2a is a stellar subgroup within the Cepheus OB2 association, consisting primarily of young, massive stars formed from the same molecular cloud in the Cepheus constellation.
  • A. Cygnus OB2 #5
    Cygnus OB2 #5 is a massive, luminous multiple star system in the Cygnus constellation, notable for its strong stellar winds and role as a prominent member of the Cygnus OB2 stellar association.
  • B. Cygnus OB2 #8A
    Cygnus OB2 #8A is a massive, luminous binary star system within the Cygnus OB2 stellar association, notable for its strong stellar winds and intense radiation.
  • C. Cygnus OB2 association
    Cygnus OB2 association is a massive, young stellar grouping rich in hot, luminous O- and B-type stars located in the constellation Cygnus.
  • D. Carina OB1 association
    Carina OB1 association is a massive, young stellar association in the Carina constellation that hosts numerous hot, luminous OB stars and rich star-forming regions.
  • E. Sh2-205
    Sh2-205 is a faint emission nebula cataloged in the Sharpless catalog, located in the constellation Camelopardalis.
  • 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_69da6268a034819081cbd9ea5a1c9475 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e668f068748190a0941e98ef5afd59 completed April 20, 2026, 5:57 p.m.
NED1 Entity disambiguation (via context triple) batch_6a083c7febf8819091f9b551b3d3b779 completed May 16, 2026, 9:44 a.m.
NEDg Description generation batch_6a083d3196148190847a625ad09762a2 completed May 16, 2026, 9:47 a.m.
NED2 Entity disambiguation (via description) batch_6a083e04aab88190a1e0219427d8d0e1 completed May 16, 2026, 9:51 a.m.
Created at: April 11, 2026, 11:36 p.m.