Union Pacific Railroad Mojave Subdivision
E483751
The Union Pacific Railroad Mojave Subdivision is a freight rail line in Southern California that runs through the Mojave Desert, serving as a key east–west corridor for Union Pacific’s operations in the region.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T4971678 — 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 Pacific Railroad Mojave Subdivision Context triple: [Metrolink Antelope Valley Line, followsCorridor, Union Pacific Railroad Mojave Subdivision]
-
A.
Union Pacific Railroad Coast Subdivision
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
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B.
Union Pacific Railroad Fresno Subdivision
The Union Pacific Railroad Fresno Subdivision is a key freight and passenger rail corridor in California’s Central Valley that carries both Union Pacific trains and Altamont Corridor Express commuter services.
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C.
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.
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D.
Union Pacific Railroad Niles Subdivision
The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
-
E.
BNSF Scenic Subdivision
The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
- 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 Pacific Railroad Mojave Subdivision Target entity description: The Union Pacific Railroad Mojave Subdivision is a freight rail line in Southern California that runs through the Mojave Desert, serving as a key east–west corridor for Union Pacific’s operations in the region.
-
A.
Union Pacific Railroad Coast Subdivision
The Union Pacific Railroad Coast Subdivision is a key rail corridor in California that carries both freight and commuter services, including trains operated by the Altamont Corridor Express.
-
B.
Union Pacific Railroad Fresno Subdivision
The Union Pacific Railroad Fresno Subdivision is a key freight and passenger rail corridor in California’s Central Valley that carries both Union Pacific trains and Altamont Corridor Express commuter services.
-
C.
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.
-
D.
Union Pacific Railroad Niles Subdivision
The Union Pacific Railroad Niles Subdivision is a freight and passenger rail corridor in California’s East Bay and Tri-Valley region that carries both Union Pacific trains and commuter services such as the Altamont Corridor Express.
-
E.
BNSF Scenic Subdivision
The BNSF Scenic Subdivision is a major BNSF Railway line through Washington state’s Cascade Mountains, known for its steep grades, tunnels, and use by both freight and passenger trains.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail line
ⓘ
railway line ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| direction | east–west ⓘ |
| electrification | not electrified ⓘ |
| function | key east–west corridor for Union Pacific operations in Southern California ⓘ |
| locatedIn |
Mojave Desert
ⓘ
Southern California ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| operator | Union Pacific Railroad ⓘ |
| owner | Union Pacific Railroad ⓘ |
| partOf |
Union Pacific Railroad network
ⓘ
linked to:
Union Pacific Railroad
|
| primaryUse | freight transportation ⓘ |
| railGauge | standard gauge ⓘ |
| railroadType | Class I railroad subdivision ⓘ |
| regionServed | Southern California ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| trackType | heavy rail ⓘ |
| traverses | Mojave Desert ⓘ |
| usedBy | freight trains ⓘ |
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 Pacific Railroad Mojave Subdivision Description of subject: The Union Pacific Railroad Mojave Subdivision is a freight rail line in Southern California that runs through the Mojave Desert, serving as a key east–west corridor for Union Pacific’s operations in the region.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Union Pacific Railroad Mojave Subdivision
linked to: Union Pacific Railroad Mojave Subdivision
linked to: Union Pacific Railroad Mojave Subdivision
linked to: Union Pacific Railroad Mojave Subdivision
Interstate 10 in San Bernardino
→
parallelTo
→
Union Pacific Railroad mainline in parts of San Bernardino County
ⓘ
linked to: Union Pacific Railroad Mojave Subdivision