Triple

T1165367
Position Surface form Disambiguated ID Type / Status
Subject Edward Charles Pickering E24586 entity
Predicate notableWork P4 FINISHED
Object Harvard spectral classification of stars
The Harvard spectral classification of stars is an early 20th-century system that categorizes stars by their spectral characteristics and surface temperatures into types O, B, A, F, G, K, and M, forming the basis of modern stellar classification.
E134309 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: Harvard spectral classification of stars | Statement: [Edward Charles Pickering, notableWork, Harvard spectral classification of stars]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Harvard spectral classification of stars
Context triple: [Edward Charles Pickering, notableWork, Harvard spectral classification of stars]
  • A. An Introduction to the Study of Stellar Structure
    An Introduction to the Study of Stellar Structure is a foundational astrophysics monograph by Subrahmanyan Chandrasekhar that rigorously develops the theory of the internal structure and evolution of stars.
  • B. Kirchhoff's three laws of spectroscopy
    Kirchhoff's three laws of spectroscopy are foundational principles in physics that explain how continuous, emission, and absorption spectra arise from interactions between matter and radiation.
  • C. The Lives of the Stars
    "The Lives of the Stars" is an episode of the science documentary series *Cosmos: A Personal Voyage* that explores the birth, evolution, and death of stars and their role in shaping the universe.
  • D. Principles of Stellar Dynamics
    Principles of Stellar Dynamics is a foundational astrophysics monograph by Subrahmanyan Chandrasekhar that rigorously develops the theoretical framework for understanding the gravitational dynamics and evolution of stellar systems such as star clusters and galaxies.
  • E. New General Catalogue
    The New General Catalogue is a comprehensive 19th-century astronomical catalog of deep-sky objects, including galaxies, nebulae, and star clusters, that remains widely used by astronomers today.
  • 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: Harvard spectral classification of stars
Triple: [Edward Charles Pickering, notableWork, Harvard spectral classification of stars]
Generated description
The Harvard spectral classification of stars is an early 20th-century system that categorizes stars by their spectral characteristics and surface temperatures into types O, B, A, F, G, K, and M, forming the basis of modern stellar classification.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Harvard spectral classification of stars
Target entity description: The Harvard spectral classification of stars is an early 20th-century system that categorizes stars by their spectral characteristics and surface temperatures into types O, B, A, F, G, K, and M, forming the basis of modern stellar classification.
  • A. An Introduction to the Study of Stellar Structure
    An Introduction to the Study of Stellar Structure is a foundational astrophysics monograph by Subrahmanyan Chandrasekhar that rigorously develops the theory of the internal structure and evolution of stars.
  • B. Kirchhoff's three laws of spectroscopy
    Kirchhoff's three laws of spectroscopy are foundational principles in physics that explain how continuous, emission, and absorption spectra arise from interactions between matter and radiation.
  • C. The Lives of the Stars
    "The Lives of the Stars" is an episode of the science documentary series *Cosmos: A Personal Voyage* that explores the birth, evolution, and death of stars and their role in shaping the universe.
  • D. Principles of Stellar Dynamics
    Principles of Stellar Dynamics is a foundational astrophysics monograph by Subrahmanyan Chandrasekhar that rigorously develops the theoretical framework for understanding the gravitational dynamics and evolution of stellar systems such as star clusters and galaxies.
  • E. New General Catalogue
    The New General Catalogue is a comprehensive 19th-century astronomical catalog of deep-sky objects, including galaxies, nebulae, and star clusters, that remains widely used by astronomers today.
  • 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_69a494060e148190abb42f971242c197 completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4bccc62a88190882d8801908015a4 completed March 1, 2026, 10:25 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac668290008190a5e175c0a2e5feb0 completed March 7, 2026, 5:55 p.m.
NEDg Description generation batch_69ac6aaa84fc81908130543b14938e41 completed March 7, 2026, 6:12 p.m.
NED2 Entity disambiguation (via description) batch_69ac6b24987c819080e00b49df8f6edb completed March 7, 2026, 6:15 p.m.
Created at: March 1, 2026, 7:45 p.m.