DART Blue Line
E53372
The DART Blue Line is a light rail service in the Dallas Area Rapid Transit system that runs through key parts of Dallas and its surrounding communities.
All labels observed (7)
| Label | Occurrences |
|---|---|
| DART Blue Line canonical | 21 |
| Blue Line (DART) | 4 |
| DART Blue Line corridor | 2 |
| DART Blue Line (in downtown trunk) | 1 |
| DART Blue Line eastern extension | 1 |
| DART Blue Line stations | 1 |
| DART Light Rail Blue Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T210220 — 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: DART Blue Line Context triple: [DART Victory Station, servesLine, DART Blue Line]
-
A.
DART Red Line
The DART Red Line is a light rail service in Dallas, Texas, forming one of the primary routes in the Dallas Area Rapid Transit rail network.
-
B.
DART Green Line
The DART Green Line is a light rail service in Dallas, Texas, operated by Dallas Area Rapid Transit and running through key corridors including downtown and Fair Park.
-
C.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
D.
Blue Line
The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
-
E.
Blue Line
The Blue Line is one of the color-coded rapid transit routes in the Washington Metro system, running through key parts of Washington, D.C. and its Virginia suburbs.
- 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: DART Blue Line Target entity description: The DART Blue Line is a light rail service in the Dallas Area Rapid Transit system that runs through key parts of Dallas and its surrounding communities.
-
A.
DART Red Line
The DART Red Line is a light rail service in Dallas, Texas, forming one of the primary routes in the Dallas Area Rapid Transit rail network.
-
B.
DART Green Line
The DART Green Line is a light rail service in Dallas, Texas, operated by Dallas Area Rapid Transit and running through key corridors including downtown and Fair Park.
-
C.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
D.
Blue Line
The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
-
E.
Blue Line
The Blue Line is one of the color-coded rapid transit routes in the Washington Metro system, running through key parts of Washington, D.C. and its Virginia suburbs.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
light rail line
ⓘ
public transit service ⓘ |
| brand |
DART Rail
ⓘ
linked to:
DART Light Rail
|
| connectsWith |
DART Green Line
ⓘ
DART Orange Line ⓘ DART Red Line ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | overhead catenary ⓘ |
| fareSystem | DART fare system ⓘ |
| hasColor | blue ⓘ |
| hasMode | rail ⓘ |
| hasServiceType | urban rail transit ⓘ |
| isInNetwork |
DART rail network
ⓘ
linked to:
DART Light Rail
|
| isSubjectOf |
DART system maps
ⓘ
Dallas public transit planning documents ⓘ |
| operator | Dallas Area Rapid Transit ⓘ |
| partOf |
DART Light Rail
ⓘ
Dallas Area Rapid Transit system ⓘ
linked to:
Dallas Area Rapid Transit
|
| servesCity |
Dallas
ⓘ
linked to:
Dallas, Texas
|
| servesCommunity |
Downtown Dallas
ⓘ
Garland ⓘ Lake Highlands area ⓘ Richardson ⓘ Rowlett ⓘ South Dallas ⓘ
linked to:
South Dallas / Fair Park area
|
| servesRegion |
Dallas County
ⓘ
linked to:
Dallas County, Texas
|
| servesStation |
Downtown Dallas stations
ⓘ
stations in Garland ⓘ stations in Rowlett ⓘ stations in South Dallas ⓘ |
| state | Texas ⓘ |
| transitType | light rail ⓘ |
| usesRailGauge | standard gauge ⓘ |
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: DART Blue Line Description of subject: The DART Blue Line is a light rail service in the Dallas Area Rapid Transit system that runs through key parts of Dallas and its surrounding communities.
Referenced by (31)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Union Station
linked to: DART Blue Line
linked to: DART Blue Line
subject linked to:
Red Line
linked to: DART Blue Line
subject linked to:
Mockingbird Station DART station
linked to: DART Blue Line
linked to: DART Blue Line
subject linked to:
Dallas Area Rapid Transit (DART) Orange Line
linked to: DART Blue Line
linked to: DART Blue Line
linked to: DART Blue Line
linked to: DART Blue Line
linked to: DART Blue Line