Triple

T20183875
Position Surface form Disambiguated ID Type / Status
Subject Cepheus OB2 association E492802 entity
Predicate contains P35 FINISHED
Object IC 1396 H II region
IC 1396 is a large, bright emission nebula and star-forming H II region in the constellation Cepheus, notable for its embedded young stellar objects and dark globules such as the Elephant’s Trunk Nebula.
E1415826 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: IC 1396 H II region | Statement: [Cepheus OB2 association, contains, IC 1396 H II region]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: IC 1396 H II region
Context triple: [Cepheus OB2 association, contains, IC 1396 H II region]
  • A. IC 434 emission nebula
    IC 434 is a bright emission nebula in the constellation Orion, best known as the glowing hydrogen backdrop that silhouettes the famous Horsehead Nebula.
  • B. Barnard 33
    Barnard 33, commonly known as the Horsehead Nebula, is a small dark nebula in the constellation Orion whose distinctive horse-head shape is silhouetted against the bright emission nebula IC 434.
  • C. W5 H II region
    W5 H II region is a large ionized hydrogen cloud in the Milky Way notable for active star formation and complex nebular structures.
  • D. Eagle Nebula
    The Eagle Nebula is a famous star-forming region in the Milky Way best known for the "Pillars of Creation," towering columns of gas and dust captured in iconic Hubble Space Telescope images.
  • E. Orion Molecular Cloud Complex
    The Orion Molecular Cloud Complex is a vast star-forming region in the constellation Orion, rich in gas, dust, and young stellar objects, and one of the most studied nurseries of massive stars in the Milky Way.
  • 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: IC 1396 H II region
Triple: [Cepheus OB2 association, contains, IC 1396 H II region]
Generated description
IC 1396 is a large, bright emission nebula and star-forming H II region in the constellation Cepheus, notable for its embedded young stellar objects and dark globules such as the Elephant’s Trunk Nebula.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: IC 1396 H II region
Target entity description: IC 1396 is a large, bright emission nebula and star-forming H II region in the constellation Cepheus, notable for its embedded young stellar objects and dark globules such as the Elephant’s Trunk Nebula.
  • A. IC 434 emission nebula
    IC 434 is a bright emission nebula in the constellation Orion, best known as the glowing hydrogen backdrop that silhouettes the famous Horsehead Nebula.
  • B. Barnard 33
    Barnard 33, commonly known as the Horsehead Nebula, is a small dark nebula in the constellation Orion whose distinctive horse-head shape is silhouetted against the bright emission nebula IC 434.
  • C. W5 H II region
    W5 H II region is a large ionized hydrogen cloud in the Milky Way notable for active star formation and complex nebular structures.
  • D. Eagle Nebula
    The Eagle Nebula is a famous star-forming region in the Milky Way best known for the "Pillars of Creation," towering columns of gas and dust captured in iconic Hubble Space Telescope images.
  • E. Orion Molecular Cloud Complex
    The Orion Molecular Cloud Complex is a vast star-forming region in the constellation Orion, rich in gas, dust, and young stellar objects, and one of the most studied nurseries of massive stars in the Milky Way.
  • 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.