Southwest Corridor alignment of the Orange Line
E707570
The Southwest Corridor alignment of the Orange Line is a modern, partially below-grade and surface transit route in Boston that replaced the former elevated Main Line structure, integrating rapid transit with a landscaped transportation corridor.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Southwest Corridor alignment of the Orange Line canonical | 1 |
| Southwest Corridor section of the Orange Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8015620 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southwest Corridor alignment of the Orange Line Context triple: [Main Line Elevated, replacedBy, Southwest Corridor alignment of the Orange Line]
-
A.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
B.
Eastside Extension corridor
The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
-
C.
Central Light Rail Line
The Central Light Rail Line is a key light rail transit corridor in Maryland that provides urban and suburban passenger rail service through the Baltimore metropolitan area.
-
D.
DART downtown transit corridor
The DART downtown transit corridor is a central light rail and bus route network running through downtown Dallas, Texas, that connects multiple DART stations and facilitates high-frequency urban transit.
-
E.
Union Station Rail Corridor
The Union Station Rail Corridor is a major railway corridor in downtown Toronto that serves as the central hub for numerous commuter and intercity train services.
- 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: Southwest Corridor alignment of the Orange Line Target entity description: The Southwest Corridor alignment of the Orange Line is a modern, partially below-grade and surface transit route in Boston that replaced the former elevated Main Line structure, integrating rapid transit with a landscaped transportation corridor.
-
A.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
B.
Eastside Extension corridor
The Eastside Extension corridor is a light rail transit corridor in East Los Angeles that carries Metro Rail service between downtown Los Angeles and several predominantly Latino eastside communities.
-
C.
Central Light Rail Line
The Central Light Rail Line is a key light rail transit corridor in Maryland that provides urban and suburban passenger rail service through the Baltimore metropolitan area.
-
D.
DART downtown transit corridor
The DART downtown transit corridor is a central light rail and bus route network running through downtown Dallas, Texas, that connects multiple DART stations and facilitates high-frequency urban transit.
-
E.
Union Station Rail Corridor
The Union Station Rail Corridor is a major railway corridor in downtown Toronto that serves as the central hub for numerous commuter and intercity train services.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
rapid transit alignment
ⓘ
transportation corridor ⓘ |
| character |
partially below-grade
ⓘ
surface alignment ⓘ |
| cityServed | Boston NERFINISHED ⓘ |
| connectsNeighborhood |
Back Bay
NERFINISHED
ⓘ
Forest Hills NERFINISHED ⓘ Jamaica Plain NERFINISHED ⓘ Roxbury NERFINISHED ⓘ South End NERFINISHED ⓘ |
| connectsStation |
Back Bay station
NERFINISHED
ⓘ
Forest Hills station NERFINISHED ⓘ Green Street station NERFINISHED ⓘ Jackson Square station NERFINISHED ⓘ Massachusetts Avenue station NERFINISHED ⓘ Ruggles station NERFINISHED ⓘ Stony Brook station NERFINISHED ⓘ |
| constructionCompleted | late 1980s ⓘ |
| electrification | third rail 600 V DC ⓘ |
| followsCorridorOf |
Interstate 93 (planned alignment, cancelled)
NERFINISHED
ⓘ
Southwest Corridor (Boston) NERFINISHED ⓘ |
| hasGauge | standard gauge ⓘ |
| hasNumberOfTracks | 2 ⓘ |
| hasStructureType |
cut-and-cover trench
ⓘ
open cut ⓘ surface right-of-way ⓘ |
| includesFacility |
bikeway
ⓘ
parkland ⓘ pedestrian paths ⓘ |
| integratedWith |
Southwest Corridor Park
NERFINISHED
ⓘ
landscaped transportation corridor ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
United States of America ⓘ
surface form:
United States
|
| openedAsAlignmentFor | MBTA Orange Line NERFINISHED ⓘ |
| openingDate | 1987 ⓘ |
| operator |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| owner |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| parallelTo |
MBTA Commuter Rail Franklin Line
NERFINISHED
ⓘ
MBTA Commuter Rail Needham Line NERFINISHED ⓘ MBTA Commuter Rail Providence/Stoughton Line NERFINISHED ⓘ |
| partOf | MBTA Orange Line NERFINISHED ⓘ |
| partOfNetwork | MBTA subway system NERFINISHED ⓘ |
| purpose |
integrate transit with open space
ⓘ
replace elevated rapid transit structure ⓘ |
| replaced |
Main Line Elevated structure
ⓘ
Washington Street Elevated NERFINISHED ⓘ |
| replacedServiceOn | Washington Street corridor NERFINISHED ⓘ |
| uses | rail rapid transit ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Southwest Corridor alignment of the Orange Line Description of subject: The Southwest Corridor alignment of the Orange Line is a modern, partially below-grade and surface transit route in Boston that replaced the former elevated Main Line structure, integrating rapid transit with a landscaped transportation corridor.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Southwest Corridor section of the Orange Line