Triple
T2921817
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Brooklyn–Manhattan Transit Corporation |
E78743
|
entity |
| Predicate | operatedLine |
P848
|
FINISHED |
| Object | BMT Sea Beach Line |
E138881
|
NE FINISHED |
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: BMT Sea Beach Line | Statement: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Sea Beach Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BMT Sea Beach Line Context triple: [Brooklyn–Manhattan Transit Corporation, operatedLine, BMT Sea Beach Line]
-
A.
BMT Sea Beach Line
chosen
The BMT Sea Beach Line is a New York City Subway line in Brooklyn that runs largely in an open-cut trench and primarily carries the N service between Coney Island and Manhattan.
-
B.
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.
-
C.
BMT Myrtle Avenue Line
The BMT Myrtle Avenue Line is a New York City Subway line in Brooklyn and Queens that primarily carries the M train along an elevated route.
-
D.
BMT Fourth Avenue Line
The BMT Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn, running beneath Fourth Avenue and serving as a key corridor for multiple services.
-
E.
BMT Astoria Line
The BMT Astoria Line is a New York City Subway line in Queens that primarily serves the Astoria neighborhood and connects it to Manhattan via elevated and underground tracks.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ad8b0c2ad081909ff87050ae542bb9 |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad97bbcc7081908a79053be35ca02e |
completed | March 8, 2026, 3:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b1f859f698819087f4ac614071d41f |
completed | March 11, 2026, 11:18 p.m. |
Created at: March 8, 2026, 2:54 p.m.