Triple

T13864552
Position Surface form Disambiguated ID Type / Status
Subject BMT Franklin Avenue Line E333287 entity
Predicate openedAsPartOf P9951 FINISHED
Object Brooklyn, Flatbush and Coney Island Railway E449827 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, Flatbush and Coney Island Railway | Statement: [BMT Franklin Avenue Line, openedAsPartOf, Brooklyn, Flatbush and Coney Island Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Brooklyn, Flatbush and Coney Island Railway
Context triple: [BMT Franklin Avenue Line, openedAsPartOf, Brooklyn, Flatbush and Coney Island Railway]
  • A. Brooklyn, Flatbush and Coney Island Railway chosen
    The Brooklyn, Flatbush and Coney Island Railway was a 19th-century steam railroad in Brooklyn that evolved into part of today’s New York City Subway system.
  • B. Coney Island and Brooklyn Railroad
    The Coney Island and Brooklyn Railroad was a historic streetcar and rapid transit line in Brooklyn, New York, that played a key role in connecting urban neighborhoods with the Coney Island amusement area in the late 19th and early 20th centuries.
  • C. Brooklyn Heights Railroad
    The Brooklyn Heights Railroad was a historic streetcar company that operated trolley lines in Brooklyn, New York, during the late 19th and early 20th centuries.
  • D. Brooklyn and Jamaica Railroad
    The Brooklyn and Jamaica Railroad was a 19th-century rail line in New York that formed part of the early backbone of Long Island’s rail network and later became integrated into what is now the Long Island Rail Road system.
  • E. Brooklyn Elevated Railroad
    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.
  • 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_69d81c5ced9c8190b0e9bcc6effe5959 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de05c30d9c81908217d41a3b4aaf85 completed April 14, 2026, 9:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69f7c10113288190b799126d934df92a completed May 3, 2026, 9:41 p.m.
Created at: April 9, 2026, 10:14 p.m.