Triple
T23254353
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Suffolk Downs station |
E581823
|
entity |
| Predicate | namedAfter |
P63
|
FINISHED |
| Object | Suffolk Downs racetrack |
—
|
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: Suffolk Downs racetrack | Statement: [Suffolk Downs station, namedAfter, Suffolk Downs racetrack]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Suffolk Downs racetrack Context triple: [Suffolk Downs station, namedAfter, Suffolk Downs racetrack]
-
A.
Suffolk Downs
chosen
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.
-
B.
Rockingham Park racetrack
Rockingham Park racetrack was a historic New Hampshire horse racing venue that operated for over a century before being closed and redeveloped.
-
C.
Gravesend Race Track
Gravesend Race Track was a prominent late-19th- and early-20th-century Thoroughbred horse racing venue in Brooklyn, New York, known for hosting major stakes races.
-
D.
Salisbury Racecourse
Salisbury Racecourse is a historic thoroughbred horse racing venue in Wiltshire, England, known for its picturesque downland setting and flat racing events.
-
E.
Fontwell Park Racecourse
Fontwell Park Racecourse is a British horse racing venue in West Sussex, best known for its figure-of-eight jumps track and regular National Hunt meetings.
- 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_69e246079f58819085eaa9c260906880 |
completed | April 17, 2026, 2:39 p.m. |
| NER | Named-entity recognition | batch_69f193f9d904819097315c9bf031f667 |
completed | April 29, 2026, 5:15 a.m. |
Created at: April 17, 2026, 4:11 p.m.