Triple
T4588134
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tattenham Corner railway station |
E103417
|
entity |
| Predicate | servedArea |
P82
|
FINISHED |
| Object | Epsom Downs |
E17979
|
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: Epsom Downs | Statement: [Tattenham Corner railway station, servedArea, Epsom Downs]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Epsom Downs Context triple: [Tattenham Corner railway station, servedArea, Epsom Downs]
-
A.
Epsom Downs Racecourse
chosen
Epsom Downs Racecourse is a historic English horse racing venue best known as the home of the Epsom Derby, one of the world’s most prestigious flat races.
-
B.
Kempton Park
Kempton Park is a town on the East Rand in Gauteng, South Africa, known for housing OR Tambo International Airport and being part of the greater Johannesburg metropolitan area.
-
C.
Suffolk Downs
Suffolk Downs is a Massachusetts Bay Transportation Authority (MBTA) Blue Line rapid transit station located in East Boston, Massachusetts, near the site of the former Suffolk Downs horse racing track.
-
D.
Windsor Racecourse
Windsor Racecourse is a popular British horse racing venue located on an island in the River Thames near Windsor, known for its evening flat races and picturesque setting.
-
E.
Broadmeadow Racecourse
Broadmeadow Racecourse is a major thoroughbred horse racing venue located in the suburb of Broadmeadow in Newcastle, New South Wales, Australia.
- 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_69bd43dccaf08190aa89e9991a289719 |
completed | March 20, 2026, 12:55 p.m. |
| NER | Named-entity recognition | batch_69bd592115fc8190b1aee1d8bbaf1ee3 |
completed | March 20, 2026, 2:26 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69befe41822c8190b406c192170af3d1 |
completed | March 21, 2026, 8:23 p.m. |
Created at: March 20, 2026, 1:11 p.m.