Metro Orange Line
E472621
The Metro Orange Line is a Washington, D.C. Metrorail route that runs east–west through the region, connecting key downtown stations with suburbs in Virginia and Maryland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Metro Orange Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4821968 — 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: Metro Orange Line Context triple: [Federal Triangle, servedBy, Metro Orange Line]
-
A.
MAX Orange Line
The MAX Orange Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with the southeast corridor, including Milwaukie.
-
B.
Metro A Line
The Metro A Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the region’s Metro Rail system.
-
C.
METRO Blue Line
The METRO Blue Line is a major light rail transit route in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with the Mall of America and Minneapolis–Saint Paul International Airport.
-
D.
Metro Blue Line
Metro Blue Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the LA Metro Rail system.
-
E.
Metro E Line
The Metro E Line is a light rail line in Los Angeles that runs between East Los Angeles and Santa Monica, providing a major east–west transit corridor across the city.
- 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: Metro Orange Line Target entity description: The Metro Orange Line is a Washington, D.C. Metrorail route that runs east–west through the region, connecting key downtown stations with suburbs in Virginia and Maryland.
-
A.
MAX Orange Line
The MAX Orange Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with the southeast corridor, including Milwaukie.
-
B.
Metro A Line
The Metro A Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the region’s Metro Rail system.
-
C.
METRO Blue Line
The METRO Blue Line is a major light rail transit route in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with the Mall of America and Minneapolis–Saint Paul International Airport.
-
D.
Metro Blue Line
Metro Blue Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the LA Metro Rail system.
-
E.
Metro E Line
The Metro E Line is a light rail line in Los Angeles that runs between East Los Angeles and Santa Monica, providing a major east–west transit corridor across the city.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Washington Metro line
ⓘ
rapid transit line ⓘ |
| abbreviation | WMATA NERFINISHED ⓘ |
| color | orange ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | 750 V DC third rail ⓘ |
| fareMedium | SmarTrip card ⓘ |
| fareSystem | distance-based ⓘ |
| openingDate | 1978-11-20 ⓘ |
| operator | Washington Metropolitan Area Transit Authority ⓘ |
| partOfNetwork | Metrorail NERFINISHED ⓘ |
| servesCity | Washington, D.C. NERFINISHED ⓘ |
| servesCounty |
Arlington County, Virginia
NERFINISHED
ⓘ
Fairfax County, Virginia NERFINISHED ⓘ Prince George's County, Maryland NERFINISHED ⓘ |
| servesDowntownStation |
Farragut West
NERFINISHED
ⓘ
Federal Triangle NERFINISHED ⓘ McPherson Square NERFINISHED ⓘ Metro Center NERFINISHED ⓘ Smithsonian NERFINISHED ⓘ |
| servesState |
District of Columbia
NERFINISHED
ⓘ
Maryland NERFINISHED ⓘ Virginia NERFINISHED ⓘ |
| servesStation |
Ballston–MU
NERFINISHED
ⓘ
Cheverly NERFINISHED ⓘ Clarendon NERFINISHED ⓘ Court House NERFINISHED ⓘ Deanwood NERFINISHED ⓘ Dunn Loring–Merrifield NERFINISHED ⓘ East Falls Church NERFINISHED ⓘ Eastern Market NERFINISHED ⓘ Foggy Bottom–GWU NERFINISHED ⓘ L'Enfant Plaza NERFINISHED ⓘ Landover NERFINISHED ⓘ Minnesota Avenue NERFINISHED ⓘ New Carrollton NERFINISHED ⓘ Rosslyn NERFINISHED ⓘ Stadium–Armory NERFINISHED ⓘ Vienna/Fairfax–GMU NERFINISHED ⓘ Virginia Square–GMU NERFINISHED ⓘ West Falls Church NERFINISHED ⓘ |
| servicePattern | east–west ⓘ |
| sharesTracksWith |
Blue Line
NERFINISHED
ⓘ
Silver Line NERFINISHED ⓘ |
| system | Washington Metro NERFINISHED ⓘ |
| terminalStationEast | New Carrollton NERFINISHED ⓘ |
| terminalStationWest |
Vienna
NERFINISHED
ⓘ
Vienna/Fairfax–GMU station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | heavy rail ⓘ |
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: Metro Orange Line Description of subject: The Metro Orange Line is a Washington, D.C. Metrorail route that runs east–west through the region, connecting key downtown stations with suburbs in Virginia and Maryland.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.