Triple

T21620757
Position Surface form Disambiguated ID Type / Status
Subject Derby–Shelton station E533569 entity
Predicate railroadDivision P1921 FINISHED
Object Metro-North Railroad New Haven Division NE NERFINISHED

How this triple was built (3 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: Metro-North Railroad New Haven Division | Statement: [Derby–Shelton station, railroadDivision, Metro-North Railroad New Haven Division]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Metro-North Railroad New Haven Division
Context triple: [Derby–Shelton station, railroadDivision, Metro-North Railroad New Haven Division]
  • A. New York, New Haven and Hartford Railroad
    The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
  • B. New York and New Haven Railroad
    The New York and New Haven Railroad was a 19th-century rail line that provided a crucial passenger and freight connection between New York City and New Haven, Connecticut, later becoming part of the New York, New Haven and Hartford Railroad system.
  • C. Hartford and New Haven Railroad
    The Hartford and New Haven Railroad was a 19th-century rail line in Connecticut that later became part of the larger New York, New Haven and Hartford Railroad system.
  • D. Metro-North Railroad New Canaan Branch
    The Metro-North Railroad New Canaan Branch is a commuter rail line in southwestern Connecticut that provides service between New Canaan and the New Haven Line main route into the New York City metropolitan area.
  • E. Metro-North Railroad Waterbury Branch
    The Metro-North Railroad Waterbury Branch is a commuter rail line in Connecticut that provides service between Waterbury and the New Haven Line, connecting the Naugatuck Valley to the broader Metro-North network.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Metro-North Railroad New Haven Division
Target entity description: The Metro-North Railroad New Haven Division is a major commuter rail division of the Metro-North system that operates service along the New Haven Line and its branches between New York and Connecticut.
  • A. New York, New Haven and Hartford Railroad
    The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
  • B. New York and New Haven Railroad
    The New York and New Haven Railroad was a 19th-century rail line that provided a crucial passenger and freight connection between New York City and New Haven, Connecticut, later becoming part of the New York, New Haven and Hartford Railroad system.
  • C. Hartford and New Haven Railroad
    The Hartford and New Haven Railroad was a 19th-century rail line in Connecticut that later became part of the larger New York, New Haven and Hartford Railroad system.
  • D. Metro-North Railroad New Canaan Branch
    The Metro-North Railroad New Canaan Branch is a commuter rail line in southwestern Connecticut that provides service between New Canaan and the New Haven Line main route into the New York City metropolitan area.
  • E. Metro-North Railroad Waterbury Branch
    The Metro-North Railroad Waterbury Branch is a commuter rail line in Connecticut that provides service between Waterbury and the New Haven Line, connecting the Naugatuck Valley to the broader Metro-North network.
  • F. None of above. chosen

Provenance (2 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_69e0c464fba881908d0ff2ac80511ce1 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69ef3baeeae48190b78583b3bec8ee33 completed April 27, 2026, 10:34 a.m.
Created at: April 16, 2026, 6:34 p.m.