Triple

T13354522
Position Surface form Disambiguated ID Type / Status
Subject S (New York City Subway service) E318152 entity
Predicate system P730 FINISHED
Object IND/BMT/IRT unified system
The IND/BMT/IRT unified system is the integrated network of former independent subway lines that together form the modern New York City Subway.
E1034611 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/BMT/IRT unified system | Statement: [S (New York City Subway service), system, IND/BMT/IRT unified system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: IND/BMT/IRT unified system
Context triple: [S (New York City Subway service), system, IND/BMT/IRT unified system]
  • A. BMT
    BMT (Brooklyn–Manhattan Transit Corporation) was a major private New York City subway operator whose lines now form one of the primary divisions of the modern NYC Subway system.
  • B. BART distance-based fare system
    The BART distance-based fare system is a pricing structure for the Bay Area Rapid Transit network in which riders are charged according to the length of their trip rather than a flat fare.
  • C. IND system
    The IND system is a major division of the New York City Subway, originally built as the city-owned Independent Subway System and now encompassing numerous lines and services across the network.
  • D. CGS-EMU system
    The CGS-EMU system is a variant of the centimeter–gram–second (CGS) system of units that uses the electromagnetic (EMU) subsystem for electrical and magnetic quantities, including the gauss as a unit of magnetic flux density.
  • E. Dual System of Rapid Transit
    The Dual System of Rapid Transit was an early 20th-century expansion and unification plan for New York City's subway network, implemented through joint contracts between the city and private transit companies.
  • 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/BMT/IRT unified system
Triple: [S (New York City Subway service), system, IND/BMT/IRT unified system]
Generated description
The IND/BMT/IRT unified system is the integrated network of former independent subway lines that together form the modern New York City Subway.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: IND/BMT/IRT unified system
Target entity description: The IND/BMT/IRT unified system is the integrated network of former independent subway lines that together form the modern New York City Subway.
  • A. BMT
    BMT (Brooklyn–Manhattan Transit Corporation) was a major private New York City subway operator whose lines now form one of the primary divisions of the modern NYC Subway system.
  • B. BART distance-based fare system
    The BART distance-based fare system is a pricing structure for the Bay Area Rapid Transit network in which riders are charged according to the length of their trip rather than a flat fare.
  • C. IND system
    The IND system is a major division of the New York City Subway, originally built as the city-owned Independent Subway System and now encompassing numerous lines and services across the network.
  • D. CGS-EMU system
    The CGS-EMU system is a variant of the centimeter–gram–second (CGS) system of units that uses the electromagnetic (EMU) subsystem for electrical and magnetic quantities, including the gauss as a unit of magnetic flux density.
  • E. Dual System of Rapid Transit
    The Dual System of Rapid Transit was an early 20th-century expansion and unification plan for New York City's subway network, implemented through joint contracts between the city and private transit companies.
  • 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_69d806b5a3c08190b42c267fb092f98a completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d99f1ef94c81909a59b7c3f77d3335 completed April 11, 2026, 1:08 a.m.
NED1 Entity disambiguation (via context triple) batch_69f71f4bdfdc819094d3945280ed8d30 completed May 3, 2026, 10:11 a.m.
NEDg Description generation batch_69f72018c4848190941732e3a938278a completed May 3, 2026, 10:14 a.m.
NED2 Entity disambiguation (via description) batch_69f720bf04548190833af70061b017a1 completed May 3, 2026, 10:17 a.m.
Created at: April 9, 2026, 9:32 p.m.