Triple
T7565430
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fitchburg Line |
E178900
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | MBTA single-level 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 single-level coaches Context triple: [Fitchburg Line, usesRollingStock, MBTA single-level 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 Type 7 Light Rail Vehicle
The MBTA Type 7 Light Rail Vehicle is a high-floor, articulated streetcar used on Boston’s Green Line, known for its distinctive design and role as one of the system’s primary light rail fleets.
-
C.
MBTA Type 9 Light Rail Vehicle
The MBTA Type 9 Light Rail Vehicle is a modern, low-floor streetcar used on Boston’s Green Line that features improved accessibility, passenger comfort, and energy efficiency compared to earlier MBTA light rail fleets.
-
D.
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.
-
E.
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.
- 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_69c69f2f80288190b95cceb4da92ab2b |
elicitation | completed |
| NER | batch_69c6f8fde87c81909795fc713d7378ff |
ner | completed |
| NED1 | batch_69c8615c98808190a9dd598846a598b2 |
ned_source_triple | completed |
Created at: March 27, 2026, 3:50 p.m.