Triple

T21923503
Position Surface form Disambiguated ID Type / Status
Subject Dual System era of New York City rapid transit E541379 entity
Predicate hasPart P35 FINISHED
Object IRT Dual Contracts
The IRT Dual Contracts were early 20th-century agreements that enabled the massive expansion and joint public–private financing of New York City's Interborough Rapid Transit subway system.
 E1507487 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: IRT Dual Contracts | Statement: [Dual System era of New York City rapid transit, hasPart, IRT Dual Contracts]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: IRT Dual Contracts
Context triple: [Dual System era of New York City rapid transit, hasPart, IRT Dual Contracts]
  • A. IRT Division
    The IRT Division is one of the original operating divisions of the New York City Subway, historically derived from the Interborough Rapid Transit Company and encompassing the system’s numbered subway lines.
  • B. IRBT
    IRBT is the stock ticker symbol for iRobot Corporation, a company best known for developing and selling Roomba robotic vacuum cleaners and other consumer robots.
  • C. IRT
    IRT is a major division of the New York City Subway system that operates the numbered (1–7) train lines, originally built by the Interborough Rapid Transit Company.
  • D. IRT
    IRT is a reality television series that follows truck drivers navigating hazardous frozen roads in remote, icy regions.
  • E. IR1
    IR1 is a model of infrared (IR) camera used for capturing images based on thermal radiation rather than visible light.
  • 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: IRT Dual Contracts
Triple: [Dual System era of New York City rapid transit, hasPart, IRT Dual Contracts]
Generated description
The IRT Dual Contracts were early 20th-century agreements that enabled the massive expansion and joint public–private financing of New York City's Interborough Rapid Transit subway system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: IRT Dual Contracts
Target entity description: The IRT Dual Contracts were early 20th-century agreements that enabled the massive expansion and joint public–private financing of New York City's Interborough Rapid Transit subway system.
  • A. IRT Division
    The IRT Division is one of the original operating divisions of the New York City Subway, historically derived from the Interborough Rapid Transit Company and encompassing the system’s numbered subway lines.
  • B. IRBT
    IRBT is the stock ticker symbol for iRobot Corporation, a company best known for developing and selling Roomba robotic vacuum cleaners and other consumer robots.
  • C. IRT
    IRT is a major division of the New York City Subway system that operates the numbered (1–7) train lines, originally built by the Interborough Rapid Transit Company.
  • D. IRT
    IRT is a reality television series that follows truck drivers navigating hazardous frozen roads in remote, icy regions.
  • E. IR1
    IR1 is a model of infrared (IR) camera used for capturing images based on thermal radiation rather than visible light.
  • 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_69e0c47d74488190a15119108794a307 completed April 16, 2026, 11:14 a.m.
NER Named-entity recognition batch_69f1233dc504819083ee27e253805189 completed April 28, 2026, 9:14 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0a5a17e4dc81909dd40d3e3051ae01 completed May 18, 2026, 12:15 a.m.
NEDg Description generation batch_6a0a5b5a751c8190a6766e87599f0396 completed May 18, 2026, 12:20 a.m.
NED2 Entity disambiguation (via description) batch_6a0a5bbedc408190987f621d98d8224a completed May 18, 2026, 12:22 a.m.
Created at: April 16, 2026, 7:45 p.m.