Seaboard main line
E719733
The Seaboard main line was a principal north–south railroad corridor in the southeastern United States, historically operated by the Seaboard Air Line Railroad and used by prominent passenger trains such as the Champion.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seaboard main line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8117029 — 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: Seaboard main line Context triple: [Champion (train), railLineUsed, Seaboard main line]
-
A.
Sounder South Line
The Sounder South Line is a commuter rail service in the Seattle metropolitan area that connects downtown Seattle with communities to the south in Washington State.
-
B.
North Coast Line
The North Coast Line is a major railway corridor in New South Wales, Australia, running along the state’s north coast and connecting Sydney with Brisbane and numerous regional centres.
-
C.
Southern Main Line
The Southern Main Line is a major Swedish railway route that connects key cities in the southern part of the country and serves as an important corridor for both passenger and freight traffic.
-
D.
South Coast Line
The South Coast Line is a New South Wales passenger rail service that runs south from Sydney through the Illawarra region to coastal centres such as Wollongong and Kiama.
-
E.
East Coast Line
The East Coast Line is a major Swedish railway route running along the country’s eastern seaboard, connecting key cities and regions including Gävleborg County.
- 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: Seaboard main line Target entity description: The Seaboard main line was a principal north–south railroad corridor in the southeastern United States, historically operated by the Seaboard Air Line Railroad and used by prominent passenger trains such as the Champion.
-
A.
Sounder South Line
The Sounder South Line is a commuter rail service in the Seattle metropolitan area that connects downtown Seattle with communities to the south in Washington State.
-
B.
North Coast Line
The North Coast Line is a major railway corridor in New South Wales, Australia, running along the state’s north coast and connecting Sydney with Brisbane and numerous regional centres.
-
C.
Southern Main Line
The Southern Main Line is a major Swedish railway route that connects key cities in the southern part of the country and serves as an important corridor for both passenger and freight traffic.
-
D.
South Coast Line
The South Coast Line is a New South Wales passenger rail service that runs south from Sydney through the Illawarra region to coastal centres such as Wollongong and Kiama.
-
E.
East Coast Line
The East Coast Line is a major Swedish railway route running along the country’s eastern seaboard, connecting key cities and regions including Gävleborg County.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
rail corridor
ⓘ
railroad line ⓘ |
| alsoKnownAs | SAL main line NERFINISHED ⓘ |
| competedWith | Atlantic Coast Line Railroad main line NERFINISHED ⓘ |
| connects |
Jacksonville, Florida
NERFINISHED
ⓘ
Richmond, Virginia NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| direction | north–south ⓘ |
| electrification | not electrified ⓘ |
| gauge | standard gauge ⓘ |
| historicalEra | 20th century ⓘ |
| historicalOperator | Seaboard Air Line Railroad NERFINISHED ⓘ |
| historicalStatus | legacy route within CSX network ⓘ |
| importance | principal north–south corridor in the Southeast ⓘ |
| locatedIn |
Southern United States
ⓘ
surface form:
Southeastern United States
|
| notableTrain |
Champion (passenger train)
NERFINISHED
ⓘ
Silver Meteor NERFINISHED ⓘ Silver Star NERFINISHED ⓘ |
| operator | Seaboard Air Line Railroad NERFINISHED ⓘ |
| partOf | Seaboard Air Line Railroad system NERFINISHED ⓘ |
| passesThrough |
Florida
NERFINISHED
ⓘ
Georgia NERFINISHED ⓘ North Carolina NERFINISHED ⓘ South Carolina NERFINISHED ⓘ Virginia NERFINISHED ⓘ |
| primaryUse |
freight rail
ⓘ
intercity passenger rail (historical) ⓘ |
| railroadCompany | Seaboard Air Line Railroad NERFINISHED ⓘ |
| regionServed |
American South
NERFINISHED
ⓘ
Atlantic seaboard NERFINISHED ⓘ |
| routeType | trunk line ⓘ |
| successorLineOperator |
CSX Transportation
NERFINISHED
ⓘ
Seaboard Coast Line Railroad NERFINISHED ⓘ |
| trackType | heavy rail ⓘ |
| transportMode | rail ⓘ |
| usedBy |
Champion (passenger train)
NERFINISHED
ⓘ
Orange Blossom Special NERFINISHED ⓘ Palmland NERFINISHED ⓘ Silver Meteor NERFINISHED ⓘ Silver Star NERFINISHED ⓘ Sunland NERFINISHED ⓘ |
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: Seaboard main line Description of subject: The Seaboard main line was a principal north–south railroad corridor in the southeastern United States, historically operated by the Seaboard Air Line Railroad and used by prominent passenger trains such as the Champion.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.