Triple
T2126086
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | University of Madras |
E46427
|
entity |
| Predicate | hasNotableAlumni |
P51
|
FINISHED |
| Object | Subrahmanyan Chandrasekhar |
E1879
|
NE FINISHED |
How this triple was built (2 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: Subrahmanyan Chandrasekhar | Statement: [University of Madras, hasNotableAlumni, Subrahmanyan Chandrasekhar]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Subrahmanyan Chandrasekhar Context triple: [University of Madras, hasNotableAlumni, Subrahmanyan Chandrasekhar]
-
A.
Subrahmanyan Chandrasekhar
chosen
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.
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.
-
C.
Martin Schwarzschild
Martin Schwarzschild was a German-American astrophysicist renowned for his pioneering work on stellar structure and evolution, as well as for introducing the use of high-altitude balloon observations in astronomy.
-
D.
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.
-
E.
Hans Bethe
Hans Bethe was a German-American theoretical physicist and Nobel laureate renowned for his work on nuclear reactions in stars and his leadership in nuclear physics research during World War II and beyond.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a88a1626548190ae59a5028c3baa8e |
completed | March 4, 2026, 7:37 p.m. |
| NER | Named-entity recognition | batch_69abbb59182081908470f9be97e272c8 |
completed | March 7, 2026, 5:44 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae58cf2a588190a59dc1ae5d684538 |
completed | March 9, 2026, 5:21 a.m. |
Created at: March 4, 2026, 7:44 p.m.