Triple

T8582288
Position Surface form Disambiguated ID Type / Status
Subject 15th Street–Prospect Park station E203211 entity
Predicate openedAsPartOf P9951 FINISHED
Object IND Brooklyn–Queens expansion
The IND Brooklyn–Queens expansion was a major early-20th-century New York City subway growth initiative that extended Independent Subway System service deeper into Brooklyn and Queens with new lines and stations.
E744286 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: IND Brooklyn–Queens expansion | Statement: [15th Street–Prospect Park station, openedAsPartOf, IND Brooklyn–Queens expansion]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: IND Brooklyn–Queens expansion
Context triple: [15th Street–Prospect Park station, openedAsPartOf, IND Brooklyn–Queens expansion]
  • A. IRT Nostrand Avenue Line extension
    The IRT Nostrand Avenue Line extension was a New York City Subway expansion project that extended service deeper into Brooklyn along Nostrand Avenue beyond its original terminus.
  • B. Queens–Brooklyn
    Queens–Brooklyn refers to the pair of adjacent New York City boroughs located on western Long Island, connected by extensive transit links, neighborhoods, and shared urban infrastructure.
  • C. Bronx–Brooklyn
    Bronx–Brooklyn refers to the two New York City boroughs of the Bronx and Brooklyn, often mentioned together in the context of transit routes and interborough connections.
  • D. Staten Island–Brooklyn corridor
    The Staten Island–Brooklyn corridor is a key transportation link between New York City’s Staten Island and Brooklyn, encompassing major routes that facilitate commuter and freight movement across the Narrows.
  • E. Staten Island South Shore transit corridor
    The Staten Island South Shore transit corridor is a key transportation route on Staten Island that serves as a major spine for local and express bus services connecting South Shore neighborhoods to the rest of New York City.
  • 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: IND Brooklyn–Queens expansion
Triple: [15th Street–Prospect Park station, openedAsPartOf, IND Brooklyn–Queens expansion]
Generated description
The IND Brooklyn–Queens expansion was a major early-20th-century New York City subway growth initiative that extended Independent Subway System service deeper into Brooklyn and Queens with new lines and stations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: IND Brooklyn–Queens expansion
Target entity description: The IND Brooklyn–Queens expansion was a major early-20th-century New York City subway growth initiative that extended Independent Subway System service deeper into Brooklyn and Queens with new lines and stations.
  • A. IRT Nostrand Avenue Line extension
    The IRT Nostrand Avenue Line extension was a New York City Subway expansion project that extended service deeper into Brooklyn along Nostrand Avenue beyond its original terminus.
  • B. Queens–Brooklyn
    Queens–Brooklyn refers to the pair of adjacent New York City boroughs located on western Long Island, connected by extensive transit links, neighborhoods, and shared urban infrastructure.
  • C. Bronx–Brooklyn
    Bronx–Brooklyn refers to the two New York City boroughs of the Bronx and Brooklyn, often mentioned together in the context of transit routes and interborough connections.
  • D. Staten Island–Brooklyn corridor
    The Staten Island–Brooklyn corridor is a key transportation link between New York City’s Staten Island and Brooklyn, encompassing major routes that facilitate commuter and freight movement across the Narrows.
  • E. Staten Island South Shore transit corridor
    The Staten Island South Shore transit corridor is a key transportation route on Staten Island that serves as a major spine for local and express bus services connecting South Shore neighborhoods to the rest of New York City.
  • 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_69ca8329bb7c8190a63c643730839103 completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cbeb1bbbd8819082670286a711826d completed March 31, 2026, 3:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69ce89b6d7f081908eecf0dd901e6bef completed April 2, 2026, 3:22 p.m.
NEDg Description generation batch_69ce8ac1dba48190bbad47a762130aab completed April 2, 2026, 3:26 p.m.
NED2 Entity disambiguation (via description) batch_69ce8eae70008190b2c7bbe4ce8d4c0a completed April 2, 2026, 3:43 p.m.
Created at: March 30, 2026, 6:22 p.m.