Triple
T3838807
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Jamaica Line |
E93400
|
entity |
| Predicate | historicalOperator |
P2834
|
FINISHED |
| Object | Brooklyn Union Elevated Railroad |
E393799
|
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: Brooklyn Union Elevated Railroad | Statement: [Jamaica Line, historicalOperator, Brooklyn Union Elevated Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Brooklyn Union Elevated Railroad Context triple: [Jamaica Line, historicalOperator, Brooklyn Union Elevated Railroad]
-
A.
Brooklyn Elevated Railroad
chosen
The Brooklyn Elevated Railroad was a late 19th- and early 20th-century elevated railway company in Brooklyn, New York City, that operated several rapid transit lines before being absorbed into the city’s unified transit system.
-
B.
Staten Island Railway
Staten Island Railway is a rapid transit line providing passenger rail service along Staten Island’s east shore in New York City.
-
C.
Hudson and Manhattan Railroad
The Hudson and Manhattan Railroad was an early 20th-century rapid transit system that operated tunnels and trains between Manhattan and New Jersey, forming the core of what is now the PATH system.
-
D.
Metropolitan West Side Elevated Railroad
The Metropolitan West Side Elevated Railroad was an early elevated transit line in Chicago that formed part of the city’s first rapid transit system on the West Side.
-
E.
New York and Harlem Railroad
The New York and Harlem Railroad was one of the earliest rail lines in New York State, forming a key part of the region’s 19th-century transportation network and later becoming a cornerstone of Cornelius Vanderbilt’s railroad empire.
- 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_69aed96ce578819084ab16e3439976c9 |
completed | March 9, 2026, 2:30 p.m. |
| NER | Named-entity recognition | batch_69aeeb9f305c8190b71ac53bbb0c4beb |
completed | March 9, 2026, 3:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b51228a7a48190bc42898be15b450b |
completed | March 14, 2026, 7:45 a.m. |
Created at: March 9, 2026, 3:18 p.m.