Point Richmond Railroad Tunnel
E826187
The Point Richmond Railroad Tunnel is a historic rail tunnel in Point Richmond, California, that once carried major freight and passenger traffic along the Santa Fe Railway line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Point Richmond Railroad Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9863161 — 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: Point Richmond Railroad Tunnel Context triple: [Point Richmond, hasLandmark, Point Richmond Railroad Tunnel]
-
A.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
B.
Sutro Tunnel
The Sutro Tunnel is a historic drainage and access tunnel driven into Nevada’s Comstock Lode in the 19th century to improve mine safety and operations.
-
C.
East Branch Tunnel
East Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
-
D.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
E.
Summit Tunnel
Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
- 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: Point Richmond Railroad Tunnel Target entity description: The Point Richmond Railroad Tunnel is a historic rail tunnel in Point Richmond, California, that once carried major freight and passenger traffic along the Santa Fe Railway line.
-
A.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
B.
Sutro Tunnel
The Sutro Tunnel is a historic drainage and access tunnel driven into Nevada’s Comstock Lode in the 19th century to improve mine safety and operations.
-
C.
East Branch Tunnel
East Branch Tunnel is a major underground conduit within New York’s Delaware Aqueduct system that transports drinking water from upstate reservoirs toward New York City.
-
D.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
E.
Summit Tunnel
Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
- F. None of above. chosen
Statements (27)
| Predicate | Object |
|---|---|
| instanceOf |
historic structure
ⓘ
rail tunnel ⓘ railway infrastructure ⓘ |
| category |
Rail infrastructure in the San Francisco Bay Area
ⓘ
Railroad tunnels in California ⓘ Transportation in Contra Costa County, California NERFINISHED ⓘ |
| city | Richmond, California NERFINISHED ⓘ |
| connectedTo | Santa Fe Railway main line in the East Bay NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasFunction | carrying trains through a hillside near Point Richmond ⓘ |
| heritageStatus | historic railroad tunnel ⓘ |
| historicalUse |
major freight corridor
ⓘ
major passenger corridor ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Contra Costa County, California NERFINISHED ⓘ Point Richmond, California NERFINISHED ⓘ Richmond, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| near |
Richmond waterfront
ⓘ
San Francisco Bay NERFINISHED ⓘ |
| neighborhood | Point Richmond NERFINISHED ⓘ |
| partOf | Santa Fe Railway line NERFINISHED ⓘ |
| railwayOperator | Atchison, Topeka and Santa Fe Railway NERFINISHED ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| transportNetwork | Atchison, Topeka and Santa Fe Railway NERFINISHED ⓘ |
| usedFor |
freight rail traffic
ⓘ
passenger rail traffic ⓘ |
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: Point Richmond Railroad Tunnel Description of subject: The Point Richmond Railroad Tunnel is a historic rail tunnel in Point Richmond, California, that once carried major freight and passenger traffic along the Santa Fe Railway line.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.