Triple
T19697109
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Brooklyn–Manhattan Transit Corporation subway network |
E472987
|
entity |
| Predicate | hasLine |
P35
|
FINISHED |
| Object | BMT West End Line (elevated predecessor) |
—
|
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: BMT West End Line (elevated predecessor) | Statement: [Brooklyn–Manhattan Transit Corporation subway network, hasLine, BMT West End Line (elevated predecessor)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BMT West End Line (elevated predecessor) Context triple: [Brooklyn–Manhattan Transit Corporation subway network, hasLine, BMT West End Line (elevated predecessor)]
-
A.
BMT Culver Line (elevated portion)
The BMT Culver Line (elevated portion) was an elevated rapid transit line in Brooklyn that formed part of New York City’s early 20th-century subway system.
-
B.
BMT West End Line
chosen
The BMT West End Line is a New York City Subway line in Brooklyn that runs primarily along New Utrecht Avenue and serves as part of the modern D train route.
-
C.
Brooklyn–Manhattan Transit (BMT) lines
The Brooklyn–Manhattan Transit (BMT) lines were a major division of New York City's early subway system, originally operated by the BMT company and now forming part of the modern B Division of the NYC Subway.
-
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 Fifth Avenue Line
The BMT Fifth Avenue Line was an elevated rapid transit line in Brooklyn, New York City, that once ran above Fifth Avenue and served as part of the Brooklyn–Manhattan Transit Corporation system before its eventual demolition.
- 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_69d8e515bef88190bc30781aea50537a |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e6421527b08190858788265043792d |
completed | April 20, 2026, 3:11 p.m. |
Created at: April 10, 2026, 1:46 p.m.