Triple

T972311
Position Surface form Disambiguated ID Type / Status
Subject Presidency College, Kolkata E20970 entity
Predicate notableAlumnus P304 FINISHED
Object Meghnad Saha
Meghnad Saha was an Indian astrophysicist best known for developing the Saha ionization equation, which fundamentally advanced the understanding of stellar atmospheres and spectra.
E115793 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: Meghnad Saha | Statement: [Presidency College, Kolkata, notableAlumnus, Meghnad Saha]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Meghnad Saha
Context triple: [Presidency College, Kolkata, notableAlumnus, Meghnad Saha]
  • A. Subrahmanyan Chandrasekhar
    Subrahmanyan Chandrasekhar was an Indian-American astrophysicist and Nobel laureate renowned for his work on stellar structure and evolution, particularly the Chandrasekhar limit for white dwarfs.
  • B. Satyendra Nath Bose
    Satyendra Nath Bose was an Indian theoretical physicist whose work on quantum mechanics led to the development of Bose–Einstein statistics and the concept of bosons.
  • C. C. V. Raman
    C. V. Raman was an Indian physicist and Nobel laureate renowned for discovering the Raman effect, which describes the inelastic scattering of light.
  • D. Prafulla Chandra Ray
    Prafulla Chandra Ray was a pioneering Indian chemist, educator, and entrepreneur, often regarded as the father of modern chemistry in India and founder of the pharmaceutical company Bengal Chemicals & Pharmaceuticals.
  • E. Arthur Stanley Eddington
    Arthur Stanley Eddington was a pioneering 20th-century British astrophysicist and mathematician known for his work on general relativity, stellar structure, and the 1919 eclipse expedition that confirmed Einstein’s theory of gravity.
  • 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: Meghnad Saha
Triple: [Presidency College, Kolkata, notableAlumnus, Meghnad Saha]
Generated description
Meghnad Saha was an Indian astrophysicist best known for developing the Saha ionization equation, which fundamentally advanced the understanding of stellar atmospheres and spectra.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Meghnad Saha
Target entity description: Meghnad Saha was an Indian astrophysicist best known for developing the Saha ionization equation, which fundamentally advanced the understanding of stellar atmospheres and spectra.
  • A. Subrahmanyan Chandrasekhar
    Subrahmanyan Chandrasekhar was an Indian-American astrophysicist and Nobel laureate renowned for his work on stellar structure and evolution, particularly the Chandrasekhar limit for white dwarfs.
  • B. Satyendra Nath Bose
    Satyendra Nath Bose was an Indian theoretical physicist whose work on quantum mechanics led to the development of Bose–Einstein statistics and the concept of bosons.
  • C. C. V. Raman
    C. V. Raman was an Indian physicist and Nobel laureate renowned for discovering the Raman effect, which describes the inelastic scattering of light.
  • D. Prafulla Chandra Ray
    Prafulla Chandra Ray was a pioneering Indian chemist, educator, and entrepreneur, often regarded as the father of modern chemistry in India and founder of the pharmaceutical company Bengal Chemicals & Pharmaceuticals.
  • E. Arthur Stanley Eddington
    Arthur Stanley Eddington was a pioneering 20th-century British astrophysicist and mathematician known for his work on general relativity, stellar structure, and the 1919 eclipse expedition that confirmed Einstein’s theory of gravity.
  • 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_69a493b33d2c81909c52c369d3ca8436 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4b44c38f08190997e141d424e9e04 completed March 1, 2026, 9:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac1cdbd22c819084346de7e729c8a1 completed March 7, 2026, 12:41 p.m.
NEDg Description generation batch_69ac1d45b8cc8190b8b678b697d3f7f1 completed March 7, 2026, 12:42 p.m.
NED2 Entity disambiguation (via description) batch_69ac1e2e200881909e9b503655d6f8ab completed March 7, 2026, 12:46 p.m.
Created at: March 1, 2026, 7:40 p.m.