Union Station–Sierra Madre Villa
E784260
Union Station–Sierra Madre Villa is a former segment of Los Angeles Metro Rail’s light rail service that connected downtown Los Angeles’ Union Station with the Sierra Madre Villa station in Pasadena.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Union Station–Sierra Madre Villa canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9201115 — 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: Union Station–Sierra Madre Villa Context triple: [Gold Line, openedSegment, Union Station–Sierra Madre Villa]
-
A.
Sepulveda House
Sepulveda House is a historic 19th-century adobe and brick residence and museum located in the El Pueblo de Los Ángeles Historical Monument district of downtown Los Angeles.
-
B.
Fort Mason
Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
-
C.
Lytton Plaza
Lytton Plaza is a small urban plaza and community gathering spot located in the heart of downtown Palo Alto, California.
-
D.
El Cerrito Plaza
El Cerrito Plaza is a major open-air shopping center in El Cerrito, California, featuring a variety of retail stores, services, and dining options.
-
E.
Del Sol station
Del Sol station is a stop on Santiago's Metro system serving Line 5 in the western part of Chile's capital.
- 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: Union Station–Sierra Madre Villa Target entity description: Union Station–Sierra Madre Villa is a former segment of Los Angeles Metro Rail’s light rail service that connected downtown Los Angeles’ Union Station with the Sierra Madre Villa station in Pasadena.
-
A.
Sepulveda House
Sepulveda House is a historic 19th-century adobe and brick residence and museum located in the El Pueblo de Los Ángeles Historical Monument district of downtown Los Angeles.
-
B.
Fort Mason
Fort Mason is a historic former military post on San Francisco’s northern waterfront that now serves as a cultural, arts, and recreational hub within the Golden Gate National Recreation Area.
-
C.
Lytton Plaza
Lytton Plaza is a small urban plaza and community gathering spot located in the heart of downtown Palo Alto, California.
-
D.
El Cerrito Plaza
El Cerrito Plaza is a major open-air shopping center in El Cerrito, California, featuring a variety of retail stores, services, and dining options.
-
E.
Del Sol station
Del Sol station is a stop on Santiago's Metro system serving Line 5 in the western part of Chile's capital.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
former Los Angeles Metro Rail service pattern
ⓘ
former light rail service segment ⓘ |
| branding | Metro Rail NERFINISHED ⓘ |
| connectedStation |
Sierra Madre Villa station
NERFINISHED
ⓘ
Union Station NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead catenary ⓘ |
| fareSystem | Los Angeles Metro fare system ⓘ |
| hadColorDesignation | gold (as part of the Gold Line) ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Los Angeles County NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| mode | light rail ⓘ |
| operator | Los Angeles County Metropolitan Transportation Authority NERFINISHED ⓘ |
| partOf | Los Angeles Metro Rail NERFINISHED ⓘ |
| primaryFunction | passenger transport ⓘ |
| region | Southern California ⓘ |
| servedArea |
Downtown Los Angeles
NERFINISHED
ⓘ
Pasadena, California NERFINISHED ⓘ |
| servedCorridor | Los Angeles–Pasadena corridor NERFINISHED ⓘ |
| servedStation |
Sierra Madre Villa station
NERFINISHED
ⓘ
Union Station NERFINISHED ⓘ |
| servicePattern | end-to-end through service between Union Station and Sierra Madre Villa station ⓘ |
| status | former ⓘ |
| systemType | urban rail transit ⓘ |
| terminusFrom | Union Station NERFINISHED ⓘ |
| terminusTo | Sierra Madre Villa station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| usedInfrastructure | Los Angeles Metro Rail tracks between Union Station and Sierra Madre Villa ⓘ |
| usedLine |
L Line
NERFINISHED
ⓘ
former Gold Line ⓘ |
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: Union Station–Sierra Madre Villa Description of subject: Union Station–Sierra Madre Villa is a former segment of Los Angeles Metro Rail’s light rail service that connected downtown Los Angeles’ Union Station with the Sierra Madre Villa station in Pasadena.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.