Triple
T18631111
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tattenham Corner line |
E455417
|
entity |
| Predicate | servesArea |
P82
|
FINISHED |
| Object | Epsom Downs area |
—
|
NE NERFINISHED |
How this triple was built (3 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 area | Statement: [Tattenham Corner line, servesArea, Epsom Downs area]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Epsom Downs area Context triple: [Tattenham Corner line, servesArea, Epsom Downs area]
-
A.
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.
-
B.
Box Hill, Surrey
Box Hill, Surrey is a prominent chalk hill and beauty spot in the North Downs, famed for its scenic views, walking trails, and rich wildlife.
-
C.
Epsom Oaks
Epsom Oaks is a prestigious Group 1 flat horse race in Great Britain for three-year-old thoroughbred fillies, run annually at Epsom Downs Racecourse.
-
D.
Banstead Downs
Banstead Downs is a large chalk grassland and golf course area on the North Downs in Surrey, England, known for its open downland landscape and wildlife habitats.
-
E.
Epsom Common
Epsom Common is a large local nature reserve and area of common land in Surrey, England, known for its woodlands, grasslands, and rich wildlife.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Epsom Downs area Target entity description: The Epsom Downs area is a locality in Surrey, England, best known for its racecourse and open chalk downland used for horse racing and recreation.
-
A.
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.
-
B.
Box Hill, Surrey
Box Hill, Surrey is a prominent chalk hill and beauty spot in the North Downs, famed for its scenic views, walking trails, and rich wildlife.
-
C.
Epsom Oaks
Epsom Oaks is a prestigious Group 1 flat horse race in Great Britain for three-year-old thoroughbred fillies, run annually at Epsom Downs Racecourse.
-
D.
Banstead Downs
Banstead Downs is a large chalk grassland and golf course area on the North Downs in Surrey, England, known for its open downland landscape and wildlife habitats.
-
E.
Epsom Common
Epsom Common is a large local nature reserve and area of common land in Surrey, England, known for its woodlands, grasslands, and rich wildlife.
- F. None of above. chosen
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_69d8d38cc7948190a55ea64e5638994e |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e54f07fa8481908b2535b8fba70b7e |
completed | April 19, 2026, 9:54 p.m. |
Created at: April 10, 2026, 11:46 a.m.