Metro Rail
E38551
Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Metro Rail canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T111812 — 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 Rail Context triple: [Los Angeles County Metropolitan Transportation Authority, operates, Metro Rail]
-
A.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
B.
MetroLink light rail
MetroLink light rail is the bi-state light rail transit system serving the Greater St. Louis area, providing regional passenger rail service across parts of Missouri and Illinois.
-
C.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
D.
Pink Line
The Pink Line is a rapid transit route in Chicago's "L" system that runs between the Loop and the city's West Side neighborhoods.
-
E.
M train
The M train is a New York City Subway service that runs through parts of Queens, Brooklyn, and Manhattan, connecting neighborhoods such as Middle Village and Forest Hills with Midtown and Lower Manhattan.
- 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 Rail Target entity description: Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
-
A.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
B.
MetroLink light rail
MetroLink light rail is the bi-state light rail transit system serving the Greater St. Louis area, providing regional passenger rail service across parts of Missouri and Illinois.
-
C.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
D.
Pink Line
The Pink Line is a rapid transit route in Chicago's "L" system that runs between the Loop and the city's West Side neighborhoods.
-
E.
M train
The M train is a New York City Subway service that runs through parts of Queens, Brooklyn, and Manhattan, connecting neighborhoods such as Middle Village and Forest Hills with Midtown and Lower Manhattan.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
public transportation system
ⓘ
rapid transit system ⓘ urban rail transit system ⓘ |
| accessibility | wheelchair accessible stations ⓘ |
| beganOperation | 1990 ⓘ |
| branding | Metro Rail ⓘ |
| connectsWith |
Metro Bus (Los Angeles)
ⓘ
linked to:
Metro Bus
Metro Busway (Los Angeles) ⓘ Metrolink (Southern California) ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification |
overhead catenary (light rail lines)
ⓘ
third rail (subway lines) ⓘ |
| farePolicy | proof-of-payment ⓘ |
| fareSystem | TAP card ⓘ |
| formerLine | L Line (Los Angeles Metro) ⓘ |
| governingBody | Los Angeles County Metropolitan Transportation Authority Board ⓘ |
| hasLine |
A Line (Los Angeles Metro)
ⓘ
linked to:
LA Metro A Line
B Line (Los Angeles Metro) ⓘ
linked to:
Metro B Line
C Line (Los Angeles Metro) ⓘ
linked to:
Metro C Line
D Line (Los Angeles Metro) ⓘ E Line (Los Angeles Metro) ⓘ
linked to:
Metro E Line
K Line (Los Angeles Metro) ⓘ |
| hasStation |
7th Street/Metro Center station
ⓘ
Long Beach Transit Mall station ⓘ North Hollywood station ⓘ Santa Monica Downtown station ⓘ Union Station (Los Angeles) ⓘ
linked to:
Union Station
Wilshire/Western station ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
|
| mode | rail ⓘ |
| openingEvent | Opening of the Blue Line between Los Angeles and Long Beach in 1990 ⓘ |
| operator | Los Angeles County Metropolitan Transportation Authority ⓘ |
| owner | Los Angeles County Metropolitan Transportation Authority ⓘ |
| partOf | Los Angeles Metro transit network ⓘ |
| primaryHub | Union Station (Los Angeles) ⓘ |
| primaryLanguage | English ⓘ |
| safetyFeature |
CCTV surveillance at stations
ⓘ
platform edge warning strips ⓘ |
| secondaryHub | 7th Street/Metro Center station ⓘ |
| secondaryLanguage | Spanish ⓘ |
| serves |
City of Los Angeles
ⓘ
linked to:
Los Angeles
Los Angeles County ⓘ |
| serviceAreaCharacteristic |
Los Angeles metropolitan area
ⓘ
linked to:
Greater Los Angeles Area
|
| serviceFrequencyCharacteristic | frequent all-day service on most lines ⓘ |
| systemType |
heavy rail subway
ⓘ
light rail ⓘ |
| ticketing | ticket vending machines at stations ⓘ |
| trackGauge | standard gauge ⓘ |
| website | https://www.metro.net ⓘ |
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 Rail Description of subject: Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.