Triple

T6255113
Position Surface form Disambiguated ID Type / Status
Subject Mattapan Line E140142 entity
Predicate formerUsage P2417 FINISHED
Object New York, New Haven and Hartford Railroad branch line E52327 NE FINISHED

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: New York, New Haven and Hartford Railroad branch line
Context triple: [Mattapan Line, formerUsage, New York, New Haven and Hartford Railroad branch line]
  • A. New Haven–Springfield Line
    The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
  • B. 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.
  • C. 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.
  • D. New York, New Haven and Hartford Railroad chosen
    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.
  • E. New Haven Line
    The New Haven Line is a major commuter rail route in the northeastern United States that connects New York City with New Haven, Connecticut, serving numerous communities along the Long Island Sound corridor.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: formerUsage
Context triple: [Mattapan Line, formerUsage, New York, New Haven and Hartford Railroad branch line]
  • A. formerlyUsedBy
    Indicates that an entity was used by another entity in the past but is no longer in use by that entity.
  • B. historicallyUsedFor chosen
    Indicates that something served a particular function or purpose at some point in the past, even if it may no longer be used that way now.
  • C. usedToBe
    Indicates that something held a particular state, role, or property in the past but no longer does in the present.
  • D. formerlyConfiguration
    Indicates that one entity was previously configured or arranged in the state or setup represented by the other entity, but is no longer so.
  • E. formerName
    Indicates that an entity was previously known by a different name in the past.
  • F. None of above.

Provenance (4 batches)

Stage Batch ID Job type Status
creating batch_69c008b4858c819095b0199114a9a87b elicitation completed
NER batch_69c06363d6008190bf05e003b1f74497 ner completed
NED1 batch_69c2443138788190835ed3fd99f21827 ned_source_triple completed
PD batch_69c05605566c81908e197f5accd072d2 pd completed
Created at: March 22, 2026, 4:24 p.m.