Triple

T4775864
Position Surface form Disambiguated ID Type / Status
Subject BMT 2 (Fourth Avenue Local) E106043 entity
Predicate network P2637 FINISHED
Object Brooklyn–Manhattan Transit Corporation subway network
The Brooklyn–Manhattan Transit Corporation subway network was a major early 20th-century rapid transit system in New York City that operated extensive lines in Brooklyn and Manhattan before being incorporated into today’s NYC Subway.
E472987 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: Brooklyn–Manhattan Transit Corporation subway network | Statement: [BMT 2 (Fourth Avenue Local), network, Brooklyn–Manhattan Transit Corporation subway network]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Brooklyn–Manhattan Transit Corporation subway network
Context triple: [BMT 2 (Fourth Avenue Local), network, Brooklyn–Manhattan Transit Corporation subway network]
  • A. New York City Subway
    The New York City Subway is one of the world’s largest and busiest rapid transit systems, serving the five boroughs of New York City with extensive 24/7 underground and elevated rail service.
  • B. Brooklyn IRT lines
    The Brooklyn IRT lines are a group of New York City Subway routes in Brooklyn that were originally built and operated by the Interborough Rapid Transit Company as part of its early rapid transit network.
  • C. MTA Bridges and Tunnels network
    The MTA Bridges and Tunnels network is a system of major toll bridges and tunnels in New York City operated by the Metropolitan Transportation Authority, connecting the city’s boroughs and surrounding regions.
  • D. MTA New York City Subway fare system
    The MTA New York City Subway fare system is the payment and ticketing framework that governs how riders pay to use New York City’s subway network, including methods like MetroCard and OMNY.
  • E. Independent Subway System (IND)
    The Independent Subway System (IND) was New York City's municipally built and operated subway network, created in the early 20th century to compete with and eventually replace the privately run IRT and BMT lines.
  • 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: Brooklyn–Manhattan Transit Corporation subway network
Triple: [BMT 2 (Fourth Avenue Local), network, Brooklyn–Manhattan Transit Corporation subway network]
Generated description
The Brooklyn–Manhattan Transit Corporation subway network was a major early 20th-century rapid transit system in New York City that operated extensive lines in Brooklyn and Manhattan before being incorporated into today’s NYC Subway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Brooklyn–Manhattan Transit Corporation subway network
Target entity description: The Brooklyn–Manhattan Transit Corporation subway network was a major early 20th-century rapid transit system in New York City that operated extensive lines in Brooklyn and Manhattan before being incorporated into today’s NYC Subway.
  • A. New York City Subway
    The New York City Subway is one of the world’s largest and busiest rapid transit systems, serving the five boroughs of New York City with extensive 24/7 underground and elevated rail service.
  • B. Brooklyn IRT lines
    The Brooklyn IRT lines are a group of New York City Subway routes in Brooklyn that were originally built and operated by the Interborough Rapid Transit Company as part of its early rapid transit network.
  • C. MTA Bridges and Tunnels network
    The MTA Bridges and Tunnels network is a system of major toll bridges and tunnels in New York City operated by the Metropolitan Transportation Authority, connecting the city’s boroughs and surrounding regions.
  • D. MTA New York City Subway fare system
    The MTA New York City Subway fare system is the payment and ticketing framework that governs how riders pay to use New York City’s subway network, including methods like MetroCard and OMNY.
  • E. Independent Subway System (IND)
    The Independent Subway System (IND) was New York City's municipally built and operated subway network, created in the early 20th century to compete with and eventually replace the privately run IRT and BMT lines.
  • 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_69bd43f3074c8190937e7b0a457fe9f1 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd6585bf088190a7847241c8868bf6 completed March 20, 2026, 3:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69be4d8e724c8190bfca713d5d022be6 completed March 21, 2026, 7:49 a.m.
NEDg Description generation batch_69be516836ec8190b5ee3829945ffc06 completed March 21, 2026, 8:06 a.m.
NED2 Entity disambiguation (via description) batch_69be52cd7aa481908963eb1ec2683a76 completed March 21, 2026, 8:11 a.m.
Created at: March 20, 2026, 1:21 p.m.