Richmond–Oakland–San Francisco corridor
E898221
The Richmond–Oakland–San Francisco corridor is a major urban and transportation axis in the San Francisco Bay Area linking the cities of Richmond, Oakland, and San Francisco.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Richmond–Oakland–San Francisco corridor canonical | 1 |
| San Francisco–Oakland Bay corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10986337 — 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: Richmond–Oakland–San Francisco corridor Context triple: [MacArthur BART station, isOnCorridor, Richmond–Oakland–San Francisco corridor]
-
A.
Los Angeles–San Francisco
Los Angeles–San Francisco refers to the major intercity corridor in California connecting the state’s largest southern metropolis with its iconic northern bay city, historically served by prominent rail and highway routes.
-
B.
Chicago–San Francisco corridor
The Chicago–San Francisco corridor is a major historic transcontinental rail route linking the Midwestern United States with the Pacific Coast across the Great Plains and the Rocky Mountains.
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C.
Alameda/Oakland–San Francisco route
The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
-
D.
South Bay–East Bay commute corridor
The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
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E.
Eugene–Portland–Seattle–Vancouver corridor
The Eugene–Portland–Seattle–Vancouver corridor is a major north–south passenger rail and transportation route in the Pacific Northwest, linking key cities in Oregon, Washington, and British Columbia.
- 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: Richmond–Oakland–San Francisco corridor Target entity description: The Richmond–Oakland–San Francisco corridor is a major urban and transportation axis in the San Francisco Bay Area linking the cities of Richmond, Oakland, and San Francisco.
-
A.
Los Angeles–San Francisco
Los Angeles–San Francisco refers to the major intercity corridor in California connecting the state’s largest southern metropolis with its iconic northern bay city, historically served by prominent rail and highway routes.
-
B.
Chicago–San Francisco corridor
The Chicago–San Francisco corridor is a major historic transcontinental rail route linking the Midwestern United States with the Pacific Coast across the Great Plains and the Rocky Mountains.
-
C.
Alameda/Oakland–San Francisco route
The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
-
D.
South Bay–East Bay commute corridor
The South Bay–East Bay commute corridor is a major regional travel route in the San Francisco Bay Area connecting residential and employment centers between the South Bay and East Bay.
-
E.
Eugene–Portland–Seattle–Vancouver corridor
The Eugene–Portland–Seattle–Vancouver corridor is a major north–south passenger rail and transportation route in the Pacific Northwest, linking key cities in Oregon, Washington, and British Columbia.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
transportation corridor
ⓘ
urban corridor ⓘ |
| connects |
Oakland, California
ⓘ
linked to:
Oakland
Richmond, California ⓘ San Francisco, California ⓘ |
| hasCharacteristic |
major transportation axis
ⓘ
major urban axis ⓘ |
| hasComponent |
Oakland
ⓘ
Richmond ⓘ San Francisco ⓘ |
| hasUrbanFunction | links East Bay and San Francisco urban centers ⓘ |
| languageOfName | English ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
San Francisco Bay Area ⓘ United States ⓘ
linked to:
United States of America
|
| namedAfter |
Oakland, California
ⓘ
linked to:
Oakland
Richmond, California ⓘ San Francisco, California ⓘ |
| partOf |
Bay Area transportation network
ⓘ
linked to:
San Francisco Bay Area transit network
|
| serves |
commuters
ⓘ
freight transport ⓘ regional travel ⓘ |
| traversedBy |
public transit
ⓘ
rail transport ⓘ road 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: Richmond–Oakland–San Francisco corridor Description of subject: The Richmond–Oakland–San Francisco corridor is a major urban and transportation axis in the San Francisco Bay Area linking the cities of Richmond, Oakland, and San Francisco.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Richmond–Oakland–San Francisco corridor