Irondale rail yard
E116506
Irondale rail yard is a major freight rail facility in Irondale, Alabama, serving as a key hub for train operations, switching, and cargo handling in the region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Irondale rail yard canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T980237 — 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: Irondale rail yard Context triple: [Irondale, Alabama, hasRailYard, Irondale rail yard]
-
A.
North Avenue Light Rail Yard
North Avenue Light Rail Yard is a major maintenance, storage, and operations facility serving Baltimore’s Light RailLink system.
-
B.
Barstow Yard
Barstow Yard is a major railroad classification and freight yard in Barstow, California, serving as a key hub for train operations in the region.
-
C.
Wellington Yard
Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
-
D.
St. Clair station
St. Clair station is a Toronto Transit Commission subway station on Line 1 in midtown Toronto, serving the St. Clair Avenue and Yonge Street area with connections to streetcar and bus routes.
-
E.
Coney Island Yard
Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
- 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: Irondale rail yard Target entity description: Irondale rail yard is a major freight rail facility in Irondale, Alabama, serving as a key hub for train operations, switching, and cargo handling in the region.
-
A.
North Avenue Light Rail Yard
North Avenue Light Rail Yard is a major maintenance, storage, and operations facility serving Baltimore’s Light RailLink system.
-
B.
Barstow Yard
Barstow Yard is a major railroad classification and freight yard in Barstow, California, serving as a key hub for train operations in the region.
-
C.
Wellington Yard
Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
-
D.
St. Clair station
St. Clair station is a Toronto Transit Commission subway station on Line 1 in midtown Toronto, serving the St. Clair Avenue and Yonge Street area with connections to streetcar and bus routes.
-
E.
Coney Island Yard
Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail facility
ⓘ
rail yard ⓘ |
| category |
Rail yards in Alabama
ⓘ
Transportation in Jefferson County, Alabama ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
cargo classification
ⓘ
freight handling ⓘ train staging ⓘ train switching ⓘ |
| handles |
cargo shipments
ⓘ
freight trains ⓘ |
| hasInfrastructure |
freight handling facilities
ⓘ
locomotive access ⓘ multiple tracks ⓘ sidings ⓘ switches ⓘ |
| locatedIn |
Alabama
ⓘ
Irondale, Alabama ⓘ Jefferson County, Alabama ⓘ |
| locatedInMetropolitanArea |
Birmingham–Hoover metropolitan area
ⓘ
surface form:
Birmingham metropolitan area
|
| modeOfTransport | rail ⓘ |
| near |
Birmingham, Alabama, United States
ⓘ
surface form:
Birmingham, Alabama
|
| partOf | regional rail network in Alabama ⓘ |
| serves |
Irondale, Alabama
ⓘ
Birmingham–Hoover metropolitan area ⓘ
surface form:
greater Birmingham area
|
| significance | major freight hub in central Alabama ⓘ |
| usedFor |
rail operations support
ⓘ
regional freight distribution ⓘ |
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: Irondale rail yard Description of subject: Irondale rail yard is a major freight rail facility in Irondale, Alabama, serving as a key hub for train operations, switching, and cargo handling in the region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.