Triple
T20534301
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Canadian Derby |
E504152
|
entity |
| Predicate | racecourse |
P16266
|
FINISHED |
| Object | Century Mile Racetrack and Casino |
—
|
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: Century Mile Racetrack and Casino | Statement: [Canadian Derby, racecourse, Century Mile Racetrack and Casino]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Century Mile Racetrack and Casino Context triple: [Canadian Derby, racecourse, Century Mile Racetrack and Casino]
-
A.
The Meadows Racetrack and Casino
The Meadows Racetrack and Casino is a popular Pennsylvania entertainment complex featuring live horse racing, a casino gaming floor, and various dining and event options.
-
B.
Sunland Park Racetrack & Casino
Sunland Park Racetrack & Casino is a combined horse racing track and casino in Sunland Park, New Mexico, known for hosting live thoroughbred and quarter horse racing along with slot machine gaming.
-
C.
Oaklawn Racing Casino Resort
Oaklawn Racing Casino Resort is a historic thoroughbred racetrack and casino complex in Hot Springs, Arkansas, known for its premier horse racing events and gaming entertainment.
-
D.
Hollywood Park Racetrack
Hollywood Park Racetrack was a prominent thoroughbred horse racing venue in Inglewood, California, known for hosting major stakes races and serving as an early home of the Breeders’ Cup.
-
E.
Zia Park Casino Hotel & Racetrack
Zia Park Casino Hotel & Racetrack is a gaming and entertainment complex in Hobbs, New Mexico, featuring a casino, hotel accommodations, and live horse racing.
- 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: Century Mile Racetrack and Casino Target entity description: Century Mile Racetrack and Casino is a modern horse racing and gaming facility in Alberta, Canada, known for hosting major thoroughbred events and offering a full-service casino.
-
A.
The Meadows Racetrack and Casino
The Meadows Racetrack and Casino is a popular Pennsylvania entertainment complex featuring live horse racing, a casino gaming floor, and various dining and event options.
-
B.
Sunland Park Racetrack & Casino
Sunland Park Racetrack & Casino is a combined horse racing track and casino in Sunland Park, New Mexico, known for hosting live thoroughbred and quarter horse racing along with slot machine gaming.
-
C.
Oaklawn Racing Casino Resort
Oaklawn Racing Casino Resort is a historic thoroughbred racetrack and casino complex in Hot Springs, Arkansas, known for its premier horse racing events and gaming entertainment.
-
D.
Hollywood Park Racetrack
Hollywood Park Racetrack was a prominent thoroughbred horse racing venue in Inglewood, California, known for hosting major stakes races and serving as an early home of the Breeders’ Cup.
-
E.
Zia Park Casino Hotel & Racetrack
Zia Park Casino Hotel & Racetrack is a gaming and entertainment complex in Hobbs, New Mexico, featuring a casino, hotel accommodations, and live horse racing.
- 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_69e0b4b476648190bc6019622ae54d3c |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e6a06df04081908fa95c6214f06093 |
completed | April 20, 2026, 9:53 p.m. |
Created at: April 16, 2026, 11:37 a.m.