Triple
T19575479
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pacman Nebula |
E489843
|
entity |
| Predicate | discoveredBy |
P412
|
FINISHED |
| Object | Edward Emerson Barnard |
—
|
NE NERFINISHED |
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: Edward Emerson Barnard | Statement: [Pacman Nebula, discoveredBy, Edward Emerson Barnard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Edward Emerson Barnard Context triple: [Pacman Nebula, discoveredBy, Edward Emerson Barnard]
-
A.
Edward Emerson Barnard
chosen
Edward Emerson Barnard was an American astronomer renowned for his discoveries of comets, dark nebulae, and the high proper-motion star now known as Barnard's Star.
-
B.
George Willis Ritchey
George Willis Ritchey was an American optician and telescope designer renowned for pioneering advanced reflecting telescope technologies in the early 20th century.
-
C.
James Edward Keeler
James Edward Keeler was an American astronomer noted for his pioneering spectroscopic studies of Saturn’s rings and for his influential role in late 19th-century astrophysical research.
-
D.
Edward Charles Pickering
Edward Charles Pickering was a pioneering American astronomer and longtime director of the Harvard College Observatory, known for his major contributions to stellar spectroscopy and the classification of stars.
-
E.
Henry Draper
Henry Draper was a pioneering 19th-century American physician and astronomer renowned for his early work in astrophotography and stellar spectroscopy, which laid the groundwork for modern stellar classification.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8e8dd9374819098e36349b3211663 |
completed | April 10, 2026, 12:11 p.m. |
| NER | Named-entity recognition | batch_69e64023fe148190900c6887896c8ea0 |
completed | April 20, 2026, 3:03 p.m. |
Created at: April 10, 2026, 1:42 p.m.