Red Line
E115430
The Red Line is one of the primary heavy-rail rapid transit routes in Atlanta’s MARTA system, running north–south and serving key destinations across the metropolitan area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Red Line canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T723054 — 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: Red Line Context triple: [Metropolitan Atlanta Rapid Transit Authority, railLine, Red Line]
-
A.
Red Line
Red Line is a major rapid transit route in the Washington Metro system, running through key areas of Washington, D.C., and its Maryland suburbs.
-
B.
Red Line
The Red Line is a major rapid transit route in the Boston metropolitan area, operated by the MBTA and running primarily north–south through key neighborhoods and suburbs.
-
C.
Red Line
The Red Line is a major rapid transit route in Chicago that runs north–south through the city, serving as one of the busiest lines in its subway and elevated rail system.
-
D.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
-
E.
Yellow Line
The Yellow Line is one of the primary passenger rail routes of the Tyne and Wear Metro rapid transit system serving the Newcastle upon Tyne area in North East England.
- 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: Red Line Target entity description: The Red Line is one of the primary heavy-rail rapid transit routes in Atlanta’s MARTA system, running north–south and serving key destinations across the metropolitan area.
-
A.
Red Line
The Red Line is a major rapid transit route in Chicago that runs north–south through the city, serving as one of the busiest lines in its subway and elevated rail system.
-
B.
Red Line
Red Line is a major rapid transit route in the Washington Metro system, running through key areas of Washington, D.C., and its Maryland suburbs.
-
C.
Red Line
The Red Line is a major rapid transit route in the Boston metropolitan area, operated by the MBTA and running primarily north–south through key neighborhoods and suburbs.
-
D.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
-
E.
Yellow Line
The Yellow Line is one of the primary passenger rail routes of the Tyne and Wear Metro rapid transit system serving the Newcastle upon Tyne area in North East England.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
heavy rail line
ⓘ
rapid transit line ⓘ |
| cityServed | Atlanta ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| direction | north–south ⓘ |
| electrification | third rail ⓘ |
| fareSystem |
MARTA Breeze Card
ⓘ
linked to:
Breeze Card
|
| gauge | standard gauge ⓘ |
| hasTerminus |
Airport station (via shared trunk alignment)
ⓘ
North Springs station ⓘ |
| lineColor | red ⓘ |
| locale |
Atlanta metropolitan area
ⓘ
linked to:
Atlanta urban area
|
| mode | rail ⓘ |
| notableFeature | forms part of MARTA’s north–south trunk through central Atlanta ⓘ |
| operator | Metropolitan Atlanta Rapid Transit Authority ⓘ |
| owner | Metropolitan Atlanta Rapid Transit Authority ⓘ |
| partOf | MARTA rail system ⓘ |
| primaryFunction | urban passenger transport ⓘ |
| region |
DeKalb County, Georgia
ⓘ
Fulton County, Georgia ⓘ |
| rollingStock | MARTA heavy rail cars ⓘ |
| serves |
Buckhead
ⓘ
Downtown Atlanta ⓘ Dunwoody area ⓘ
linked to:
Dunwoody, Georgia
Hartsfield–Jackson Atlanta International Airport vicinity (via shared trunk to Airport Station) ⓘ Midtown Atlanta ⓘ Sandy Springs ⓘ |
| servicePattern | all-stops ⓘ |
| sharesTrackageWith |
Blue Line (MARTA)
ⓘ
Gold Line (MARTA) ⓘ Green Line (MARTA) ⓘ |
| stateServed | Georgia ⓘ |
| system | MARTA ⓘ |
| trackConfiguration | double track ⓘ |
| transitType |
heavy 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: Red Line Description of subject: The Red Line is one of the primary heavy-rail rapid transit routes in Atlanta’s MARTA system, running north–south and serving key destinations across the metropolitan area.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.