Triple

T6255117

Position	Surface form	Disambiguated ID	Type / Status
Subject	Mattapan Line	`E140142`	entity
Predicate	isShuttleFor	`P3493`	FINISHED
Object	Ashmont–Mattapan corridor	`E71486`	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: Ashmont–Mattapan corridor
Context triple: [Mattapan Line, isShuttleFor, Ashmont–Mattapan corridor]

A. South Boston Transitway
The South Boston Transitway is an underground bus rapid transit tunnel in Boston that carries MBTA Silver Line routes between South Station and the Seaport District.
B. Brookline Avenue
Brookline Avenue is a major street in Boston, Massachusetts, running through the Fenway–Kenmore area and providing access to landmarks like Fenway Park and the Longwood Medical Area.
C. Mill Plain Boulevard corridor
The Mill Plain Boulevard corridor is a major east–west arterial route in Vancouver, Washington, serving as a key commercial and transit spine through the city.
D. MBTA Ashmont Branch chosen
The MBTA Ashmont Branch is a rapid transit line of Boston’s Red Line that runs from JFK/UMass station through Dorchester to Ashmont, serving several southern neighborhoods of the city.
E. Rhode Island Avenue NE corridor
The Rhode Island Avenue NE corridor is a major commercial and transportation artery in Northeast Washington, D.C., lined with shops, services, and residential neighborhoods and served by multiple transit options.
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_69c008b4858c819095b0199114a9a87b`	elicitation	completed
NER	`batch_69c06363d6008190bf05e003b1f74497`	ner	completed
NED1	`batch_69c519246a588190b14ad9331e1a5eea`	ned_source_triple	completed

Created at: March 22, 2026, 4:24 p.m.