Triple

T7303972
Position Surface form Disambiguated ID Type / Status
Subject Kingston Line E167927 entity
Predicate usesRollingStock P5426 FINISHED
Object MBTA Commuter Rail coaches E84701 NE FINISHED

Disambiguation candidates (1 decision)

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: MBTA Commuter Rail coaches
Context triple: [Kingston Line, usesRollingStock, MBTA Commuter Rail coaches]
  • A. MBTA Commuter Rail coaches chosen
    MBTA Commuter Rail coaches are bi-level and single-level passenger railcars used by the Massachusetts Bay Transportation Authority to provide regional rail service across Greater Boston and surrounding areas.
  • B. MBTA Red Line 1800 series cars
    The MBTA Red Line 1800 series cars are a fleet of heavy-rail subway vehicles used on Boston’s Red Line, featuring stainless-steel bodies and modernized interiors compared to earlier generations of MBTA rolling stock.
  • C. MBTA Red Line 1700 series cars
    The MBTA Red Line 1700 series cars are a fleet of heavy-rail subway vehicles used on Boston’s Red Line, particularly associated with service on the Braintree Branch.
  • D. MBTA Commuter Rail network
    The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
  • E. MBTA Red Line 1500/1600 series cars
    The MBTA Red Line 1500/1600 series cars are an older generation of heavy-rail subway vehicles that have long served Boston’s Red Line, particularly known for their stainless-steel bodies and traditional rapid-transit design.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69c6888c820881909fc68f689fe1c251 elicitation completed
NER batch_69c6ebb352ec8190846eff044e08805e ner completed
NED1 batch_69c7e55bfccc8190a46067c60c3c1a3f ned_source_triple completed
Created at: March 27, 2026, 3:01 p.m.