Triple
T4527476
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | BMT Brighton Line |
E106213
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object |
Brooklyn, Flatbush and Coney Island line
The Brooklyn, Flatbush and Coney Island line was an early surface and elevated railway in Brooklyn that evolved into what is now known as the BMT Brighton Line of the New York City Subway.
|
E453093
|
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: Brooklyn, Flatbush and Coney Island line | Statement: [BMT Brighton Line, formerName, Brooklyn, Flatbush and Coney Island line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Brooklyn, Flatbush and Coney Island line Context triple: [BMT Brighton Line, formerName, Brooklyn, Flatbush and Coney Island line]
-
A.
BMT Canarsie Line
The BMT Canarsie Line is a New York City Subway rapid transit line in Brooklyn and Manhattan, best known for being served by the L train and running crosstown under 14th Street.
-
B.
Brooklyn–Coney Island subway corridor
The Brooklyn–Coney Island subway corridor is a major rapid transit artery in Brooklyn that connects inland neighborhoods to the Coney Island peninsula via multiple New York City Subway lines.
-
C.
Nostrand Avenue Line
The Nostrand Avenue Line is a New York City Subway route in Brooklyn that branches off the IRT Eastern Parkway Line to serve neighborhoods along Nostrand Avenue, terminating at Flatbush Avenue–Brooklyn College.
-
D.
BMT Nassau Street Line
The BMT Nassau Street Line is a New York City Subway line in Lower Manhattan that primarily carries J and Z trains through the Financial District.
-
E.
Queens Boulevard Line
The Queens Boulevard Line is a major trunk line of the New York City Subway in Queens, carrying multiple services through some of the borough’s busiest residential and commercial corridors.
- 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: Brooklyn, Flatbush and Coney Island line Triple: [BMT Brighton Line, formerName, Brooklyn, Flatbush and Coney Island line]
Generated description
The Brooklyn, Flatbush and Coney Island line was an early surface and elevated railway in Brooklyn that evolved into what is now known as the BMT Brighton Line of the New York City Subway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Brooklyn, Flatbush and Coney Island line Target entity description: The Brooklyn, Flatbush and Coney Island line was an early surface and elevated railway in Brooklyn that evolved into what is now known as the BMT Brighton Line of the New York City Subway.
-
A.
BMT Canarsie Line
The BMT Canarsie Line is a New York City Subway rapid transit line in Brooklyn and Manhattan, best known for being served by the L train and running crosstown under 14th Street.
-
B.
Brooklyn–Coney Island subway corridor
The Brooklyn–Coney Island subway corridor is a major rapid transit artery in Brooklyn that connects inland neighborhoods to the Coney Island peninsula via multiple New York City Subway lines.
-
C.
Nostrand Avenue Line
The Nostrand Avenue Line is a New York City Subway route in Brooklyn that branches off the IRT Eastern Parkway Line to serve neighborhoods along Nostrand Avenue, terminating at Flatbush Avenue–Brooklyn College.
-
D.
BMT Nassau Street Line
The BMT Nassau Street Line is a New York City Subway line in Lower Manhattan that primarily carries J and Z trains through the Financial District.
-
E.
Queens Boulevard Line
The Queens Boulevard Line is a major trunk line of the New York City Subway in Queens, carrying multiple services through some of the borough’s busiest residential and commercial corridors.
- 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_69bd43f3d6e08190a91824f833d51bbe |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd577737848190ad509c8bb8e57ec0 |
completed | March 20, 2026, 2:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bdc55254848190940c506e75d79933 |
completed | March 20, 2026, 10:08 p.m. |
| NEDg | Description generation | batch_69bdc8eea638819080c255769a66d651 |
completed | March 20, 2026, 10:23 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69bdc96926288190b7a922adf15098f4 |
completed | March 20, 2026, 10:25 p.m. |
Created at: March 20, 2026, 1:03 p.m.