Baltimore & Potomac Railroad
E912853
The Baltimore & Potomac Railroad was a 19th-century rail line that connected Baltimore to Washington, D.C., later becoming part of the Pennsylvania Railroad system.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Baltimore and Potomac Railroad | 3 |
| Baltimore & Potomac Railroad canonical | 1 |
| Washington Branch of the Baltimore & Potomac Railroad | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11227207 — 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.
Target entity: Baltimore & Potomac Railroad Context triple: [Odenton, railroadOrigin, Baltimore & Potomac Railroad]
-
A.
Baltimore and Ohio Railroad
The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
-
B.
Baltimore and Susquehanna Railroad
The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
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C.
Philadelphia, Wilmington and Baltimore Railroad
The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
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D.
Pennsylvania Railroad Company
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
-
E.
Seaboard System Railroad
Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Baltimore & Potomac Railroad Target entity description: The Baltimore & Potomac Railroad was a 19th-century rail line that connected Baltimore to Washington, D.C., later becoming part of the Pennsylvania Railroad system.
-
A.
Baltimore and Ohio Railroad
The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
-
B.
Baltimore and Susquehanna Railroad
The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
-
C.
Philadelphia, Wilmington and Baltimore Railroad
The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
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D.
Pennsylvania Railroad Company
The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
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E.
Seaboard System Railroad
Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
defunct railroad company
ⓘ
railroad company ⓘ |
| acquiredBy |
Pennsylvania Railroad
ⓘ
linked to:
Pennsylvania Railroad Company
|
| acquisitionCompleted | 1872 ⓘ |
| becamePartOf |
Pennsylvania Railroad system
ⓘ
linked to:
Pennsylvania Railroad Company
|
| builtToCompeteWith | Baltimore and Ohio Railroad ⓘ |
| chartered | 1853 ⓘ |
| connectedCity |
Baltimore, Maryland
ⓘ
linked to:
Baltimore, Maryland, United States
Washington, D.C. ⓘ |
| connectedToNetworkOf |
Pennsylvania Railroad
ⓘ
linked to:
Pennsylvania Railroad Company
|
| country |
United States
ⓘ
linked to:
United States of America
|
| era | post–Civil War period ⓘ |
| gauge | standard gauge ⓘ |
| hadStation | Baltimore & Potomac Railroad Station (Washington, D.C.) ⓘ |
| headquartersLocation |
Baltimore, Maryland
ⓘ
linked to:
Baltimore, Maryland, United States
|
| historicalSignificance | provided direct rail connection between Baltimore and Washington, D.C. ⓘ |
| laterOperatedAs |
Pennsylvania Railroad Baltimore–Washington line
ⓘ
linked to:
Washington–Baltimore rail corridor
|
| lineExtendedTo | Pope’s Creek, Maryland ⓘ |
| lineType | intercity rail line ⓘ |
| locatedIn |
District of Columbia
ⓘ
Maryland ⓘ |
| mainLineTerminus |
Baltimore, Maryland
ⓘ
linked to:
Baltimore, Maryland, United States
Washington, D.C. ⓘ |
| notableEventAtFacility | assassination of James A. Garfield ⓘ |
| openedForTraffic | 1872 ⓘ |
| operated | 19th century ⓘ |
| parentCompany |
Pennsylvania Railroad
ⓘ
linked to:
Pennsylvania Railroad Company
|
| partOf |
Pennsylvania Railroad
ⓘ
linked to:
Pennsylvania Railroad Company
|
| servedCity |
Baltimore, Maryland
ⓘ
linked to:
Baltimore, Maryland, United States
Washington, D.C. ⓘ |
| servedPort |
Baltimore harbor
ⓘ
linked to:
Baltimore Harbor
|
| servedRegion |
Mid-Atlantic United States
ⓘ
linked to:
Mid-Atlantic states
|
| servedState | Maryland ⓘ |
| successorLine |
Pennsylvania Railroad main line between Baltimore and Washington
ⓘ
linked to:
Washington–Baltimore rail corridor
|
| trackGauge | 4 ft 8 1⁄2 in ⓘ |
| usedFor |
freight transport
ⓘ
passenger transport ⓘ |
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.
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.
Subject: Baltimore & Potomac Railroad Description of subject: The Baltimore & Potomac Railroad was a 19th-century rail line that connected Baltimore to Washington, D.C., later becoming part of the Pennsylvania Railroad system.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.