Triple

T572979
Position Surface form Disambiguated ID Type / Status
Subject C train E13701 entity
Predicate brooklynTerminal P3569 FINISHED
Object Euclid Avenue–East New York
Euclid Avenue–East New York is a major New York City Subway station in Brooklyn that serves as a key terminal and transfer point on the IND Fulton Street Line.
E148841 NE FINISHED

How this triple was built (5 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: Euclid Avenue–East New York | Statement: [C train, brooklynTerminal, Euclid Avenue–East New York]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Euclid Avenue–East New York
Context triple: [C train, brooklynTerminal, Euclid Avenue–East New York]
  • A. Flatbush Avenue
    Flatbush Avenue is a major thoroughfare in Brooklyn, New York City, running from Downtown Brooklyn through several neighborhoods to the Marine Parkway–Gil Hodges Memorial Bridge.
  • B. Lenox Avenue
    Lenox Avenue is a major north–south thoroughfare in Harlem, Manhattan, historically known as a cultural and commercial hub of African-American life and the Harlem Renaissance.
  • C. Queens Boulevard
    Queens Boulevard is a major thoroughfare in the New York City borough of Queens, known for its wide lanes, heavy traffic, and history as a dangerous roadway for pedestrians.
  • D. Flatbush
    Flatbush is a diverse, historically Caribbean-American neighborhood in central Brooklyn, New York City, known for its vibrant culture and Victorian-era residential streets.
  • E. Harlem River Drive
    Harlem River Drive is a major north–south expressway in Manhattan, New York City, running along the Harlem River and connecting the FDR Drive with the George Washington Bridge approaches.
  • 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: Euclid Avenue–East New York
Triple: [C train, brooklynTerminal, Euclid Avenue–East New York]
Generated description
Euclid Avenue–East New York is a major New York City Subway station in Brooklyn that serves as a key terminal and transfer point on the IND Fulton Street Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Euclid Avenue–East New York
Target entity description: Euclid Avenue–East New York is a major New York City Subway station in Brooklyn that serves as a key terminal and transfer point on the IND Fulton Street Line.
  • A. Flatbush Avenue
    Flatbush Avenue is a major thoroughfare in Brooklyn, New York City, running from Downtown Brooklyn through several neighborhoods to the Marine Parkway–Gil Hodges Memorial Bridge.
  • B. Lenox Avenue
    Lenox Avenue is a major north–south thoroughfare in Harlem, Manhattan, historically known as a cultural and commercial hub of African-American life and the Harlem Renaissance.
  • C. Queens Boulevard
    Queens Boulevard is a major thoroughfare in the New York City borough of Queens, known for its wide lanes, heavy traffic, and history as a dangerous roadway for pedestrians.
  • D. Flatbush
    Flatbush is a diverse, historically Caribbean-American neighborhood in central Brooklyn, New York City, known for its vibrant culture and Victorian-era residential streets.
  • E. Harlem River Drive
    Harlem River Drive is a major north–south expressway in Manhattan, New York City, running along the Harlem River and connecting the FDR Drive with the George Washington Bridge approaches.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: brooklynTerminal
Context triple: [C train, brooklynTerminal, Euclid Avenue–East New York]
  • A. designatedNYCLandmark
    Indicates that an entity has been officially designated as a New York City landmark by the appropriate municipal authority.
  • B. terminusCity
    Indicates that a transportation route or service ends or has its final stop in a particular city.
  • C. isDowntownEndpointOf
    Indicates that a location serves as the downtown terminus or endpoint of a route, line, or path.
  • D. hasBorough
    Indicates that one entity is located within, belongs to, or is administratively part of a specific borough.
  • E. terminusEast chosen
    Indicates that one entity serves as the eastern endpoint or final stop of another entity, such as a route, line, or path.
  • F. None of above.

Provenance (6 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_69a4933fa4d88190a7949cc83c08c5c1 completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a49b4ae0988190bdd0ad428b784d85 completed March 1, 2026, 8:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69acb2eb81cc81908907c02ff43644d7 completed March 7, 2026, 11:21 p.m.
NEDg Description generation batch_69acb370c7cc81908a78bb5438416db6 completed March 7, 2026, 11:23 p.m.
NED2 Entity disambiguation (via description) batch_69acb409b4d0819081266cf3e6c09164 completed March 7, 2026, 11:26 p.m.
PD Predicate disambiguation batch_69a494c4969c819080375d08f9eec50c completed March 1, 2026, 7:34 p.m.
Created at: March 1, 2026, 7:33 p.m.