San Pedro, Los Angeles and Salt Lake Railroad
E924482
The San Pedro, Los Angeles and Salt Lake Railroad was an early 20th-century rail line that connected Los Angeles, California, with Salt Lake City, Utah, playing a key role in the development of the American Southwest.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Pedro, Los Angeles and Salt Lake Railroad canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11420728 — 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: San Pedro, Los Angeles and Salt Lake Railroad Context triple: [Caliente, Nevada, formerRailroad, San Pedro, Los Angeles and Salt Lake Railroad]
-
A.
Arizona and California Railroad
The Arizona and California Railroad is a short line freight railroad operating in the southwestern United States, primarily connecting communities in western Arizona and southeastern California.
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B.
Oregon and California Railroad
The Oregon and California Railroad was a 19th-century rail line in the Pacific Northwest that played a key role in connecting Oregon communities and facilitating regional development.
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C.
Las Vegas and Tonopah Railroad
The Las Vegas and Tonopah Railroad was an early 20th-century Nevada rail line that connected Las Vegas with mining boomtowns in the state’s south-central region, serving as a key carrier for ore, supplies, and passengers during the mining rush era.
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D.
Carson and Colorado Railway
The Carson and Colorado Railway was a narrow-gauge railroad that operated in the late 19th and early 20th centuries, primarily serving remote mining regions in Nevada and eastern California.
-
E.
Union Pacific West Line
The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
- 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: San Pedro, Los Angeles and Salt Lake Railroad Target entity description: The San Pedro, Los Angeles and Salt Lake Railroad was an early 20th-century rail line that connected Los Angeles, California, with Salt Lake City, Utah, playing a key role in the development of the American Southwest.
-
A.
Arizona and California Railroad
The Arizona and California Railroad is a short line freight railroad operating in the southwestern United States, primarily connecting communities in western Arizona and southeastern California.
-
B.
Oregon and California Railroad
The Oregon and California Railroad was a 19th-century rail line in the Pacific Northwest that played a key role in connecting Oregon communities and facilitating regional development.
-
C.
Las Vegas and Tonopah Railroad
The Las Vegas and Tonopah Railroad was an early 20th-century Nevada rail line that connected Las Vegas with mining boomtowns in the state’s south-central region, serving as a key carrier for ore, supplies, and passengers during the mining rush era.
-
D.
Carson and Colorado Railway
The Carson and Colorado Railway was a narrow-gauge railroad that operated in the late 19th and early 20th centuries, primarily serving remote mining regions in Nevada and eastern California.
-
E.
Union Pacific West Line
The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
railroad company
ⓘ
railroad line ⓘ |
| acquiredBy | Union Pacific Railroad ⓘ |
| connects |
California
ⓘ
linked to:
California (state)
Los Angeles ⓘ Salt Lake City ⓘ Utah ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| endPoint |
Salt Lake City, Utah
ⓘ
linked to:
Salt Lake City
|
| gauge | standard gauge ⓘ |
| hasComponent |
rail line between Las Vegas and Salt Lake City
ⓘ
rail line between Los Angeles and Las Vegas ⓘ |
| historicalEra | early 20th century ⓘ |
| industry | rail transport ⓘ |
| languageOfName | English ⓘ |
| locatedIn |
Western United States
ⓘ
linked to:
western United States
|
| mainRouteThrough |
Las Vegas Valley
ⓘ
Mojave Desert ⓘ Nevada ⓘ |
| notableFor |
direct rail connection between Los Angeles and Salt Lake City
ⓘ
facilitating long-distance freight traffic between Pacific Coast and interior West ⓘ |
| operatedBy | Union Pacific Railroad ⓘ |
| partOf | transcontinental rail network of the United States ⓘ |
| playedRoleIn |
development of the American Southwest
ⓘ
economic development of Nevada ⓘ economic development of Southern California ⓘ growth of Las Vegas ⓘ |
| servedRegion |
American Southwest
ⓘ
linked to:
southwestern United States
Intermountain West ⓘ Southern California ⓘ |
| startPoint | Los Angeles, California ⓘ |
| status | defunct ⓘ |
| successor | Union Pacific Railroad ⓘ |
| transportType |
freight rail
ⓘ
passenger rail ⓘ |
| usedFor |
passenger travel between California and Utah
ⓘ
transport of agricultural products ⓘ transport of minerals from Nevada ⓘ |
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: San Pedro, Los Angeles and Salt Lake Railroad Description of subject: The San Pedro, Los Angeles and Salt Lake Railroad was an early 20th-century rail line that connected Los Angeles, California, with Salt Lake City, Utah, playing a key role in the development of the American Southwest.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.