Los Angeles–San Diego rail corridor
E739498
The Los Angeles–San Diego rail corridor is a major Southern California passenger and freight rail route running along the coast between the Los Angeles and San Diego metropolitan areas.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T8508211 — 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: Los Angeles–San Diego rail corridor Context triple: [Orange County Line, followsRoute, Los Angeles–San Diego rail corridor]
-
A.
Los Angeles–Seattle rail corridor
The Los Angeles–Seattle rail corridor is a major long-distance passenger rail route in the western United States, connecting Southern California with the Pacific Northwest along the coast.
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B.
Los Angeles–New Orleans rail corridor
The Los Angeles–New Orleans rail corridor is a major transcontinental rail route linking Southern California to the U.S. Gulf Coast, used for both freight and long-distance passenger service.
-
C.
BNSF San Bernardino Subdivision
The BNSF San Bernardino Subdivision is a major freight rail line in Southern California operated by BNSF Railway, serving as a key corridor for transcontinental rail traffic.
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D.
SP Coast Line between Los Angeles and San Francisco
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
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E.
Metrolink Ventura County Line
Metrolink Ventura County Line is a Southern California commuter rail route connecting Los Angeles with Ventura County communities, including Oxnard.
- 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: Los Angeles–San Diego rail corridor Target entity description: The Los Angeles–San Diego rail corridor is a major Southern California passenger and freight rail route running along the coast between the Los Angeles and San Diego metropolitan areas.
-
A.
Los Angeles–Seattle rail corridor
The Los Angeles–Seattle rail corridor is a major long-distance passenger rail route in the western United States, connecting Southern California with the Pacific Northwest along the coast.
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B.
Los Angeles–New Orleans rail corridor
The Los Angeles–New Orleans rail corridor is a major transcontinental rail route linking Southern California to the U.S. Gulf Coast, used for both freight and long-distance passenger service.
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C.
BNSF San Bernardino Subdivision
The BNSF San Bernardino Subdivision is a major freight rail line in Southern California operated by BNSF Railway, serving as a key corridor for transcontinental rail traffic.
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D.
SP Coast Line between Los Angeles and San Francisco
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
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E.
Metrolink Ventura County Line
Metrolink Ventura County Line is a Southern California commuter rail route connecting Los Angeles with Ventura County communities, including Oxnard.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail line
ⓘ
passenger rail line ⓘ rail corridor ⓘ railway line ⓘ |
| connects |
Los Angeles Union Station
ⓘ
linked to:
Union Station (Los Angeles)
San Diego Santa Fe Depot ⓘ
linked to:
Santa Fe Depot (San Diego)
|
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | not electrified ⓘ |
| follows | Pacific coast ⓘ |
| gauge | standard gauge ⓘ |
| hasTrafficType | mixed passenger and freight traffic ⓘ |
| importance | major intercity rail corridor in California ⓘ |
| locatedIn | Southern California ⓘ |
| ownedBy | multiple public agencies ⓘ |
| parallelTo |
Interstate 5
ⓘ
Pacific Coast Highway ⓘ |
| partOf | Pacific Surfliner route ⓘ |
| passesThrough |
Los Angeles County
ⓘ
Orange County ⓘ
linked to:
Orange County, California
San Diego County ⓘ |
| regionServed |
Greater Los Angeles
ⓘ
linked to:
Greater Los Angeles Area
Greater San Diego ⓘ
linked to:
San Diego metropolitan area
|
| servedBy |
Amtrak Pacific Surfliner
ⓘ
linked to:
Amtrak California
Coaster commuter rail ⓘ
linked to:
COASTER commuter rail
Metrolink commuter rail ⓘ |
| terminusA |
Los Angeles metropolitan area
ⓘ
linked to:
Greater Los Angeles Area
|
| terminusB | San Diego metropolitan area ⓘ |
| trackConfiguration | primarily double track ⓘ |
| usedFor |
freight rail transport
ⓘ
passenger rail transport ⓘ |
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: Los Angeles–San Diego rail corridor Description of subject: The Los Angeles–San Diego rail corridor is a major Southern California passenger and freight rail route running along the coast between the Los Angeles and San Diego metropolitan areas.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Los Angeles–San Diego rail corridor
linked to: Los Angeles–San Diego rail corridor
linked to: Los Angeles–San Diego rail corridor