Triple
T1190030
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Blue Line |
E25336
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
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.
|
E141751
|
NE FINISHED |
How this triple was built (4 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 | Statement: [MBTA Blue Line, hasStation, Suffolk Downs]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Suffolk Downs Context triple: [MBTA Blue Line, hasStation, Suffolk Downs]
-
A.
Epsom Downs Racecourse
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.
Newbury Racecourse
Newbury Racecourse is a prominent British horse racing venue known for hosting both flat and National Hunt races, including major events like the Ladbrokes Trophy.
-
C.
Fakenham Racecourse
Fakenham Racecourse is a small National Hunt horse racing venue in Norfolk, England, known for its tight, left-handed track and rural setting.
-
D.
Ascot
Ascot is a village in Berkshire, England, best known for its prestigious racecourse and the annual Royal Ascot horse racing event.
-
E.
Meydan Racecourse
Meydan Racecourse is a premier horse racing venue in Dubai, United Arab Emirates, renowned for hosting some of the world's richest and most prestigious thoroughbred racing events.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Suffolk Downs Triple: [MBTA Blue Line, hasStation, Suffolk Downs]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Suffolk Downs Target entity description: 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.
-
A.
Epsom Downs Racecourse
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.
Newbury Racecourse
Newbury Racecourse is a prominent British horse racing venue known for hosting both flat and National Hunt races, including major events like the Ladbrokes Trophy.
-
C.
Fakenham Racecourse
Fakenham Racecourse is a small National Hunt horse racing venue in Norfolk, England, known for its tight, left-handed track and rural setting.
-
D.
Ascot
Ascot is a village in Berkshire, England, best known for its prestigious racecourse and the annual Royal Ascot horse racing event.
-
E.
Meydan Racecourse
Meydan Racecourse is a premier horse racing venue in Dubai, United Arab Emirates, renowned for hosting some of the world's richest and most prestigious thoroughbred racing events.
- F. None of above. chosen
Provenance (5 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_69a49427d98881908646d6c63b8cea1e |
completed | March 1, 2026, 7:31 p.m. |
| NER | Named-entity recognition | batch_69a4bd58d8d88190b8d9c9c9de7f4e97 |
completed | March 1, 2026, 10:27 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac8f6d4e788190b993dc2bdd69ed26 |
completed | March 7, 2026, 8:49 p.m. |
| NEDg | Description generation | batch_69ac8fe33f2c8190bd2ea9dfa9744a3a |
completed | March 7, 2026, 8:51 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac90412d3881909278a9a6c6536ce3 |
completed | March 7, 2026, 8:53 p.m. |
Created at: March 1, 2026, 7:45 p.m.