U.S. Post Office and Courthouse, Pittsburgh
E615783
The U.S. Post Office and Courthouse in Pittsburgh is a historic federal building designed by architect Egerton Swartwout, notable for its grand Beaux-Arts architecture and combined postal and judicial functions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| U.S. Post Office and Courthouse, Pittsburgh canonical | 2 |
| U.S. Courthouse, Pittsburgh | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6748152 — 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: U.S. Post Office and Courthouse, Pittsburgh Context triple: [Egerton Swartwout, notableWork, U.S. Post Office and Courthouse, Pittsburgh]
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A.
U.S. Courthouse and Post Office (Pittsburgh, Pennsylvania)
The U.S. Courthouse and Post Office in Pittsburgh, Pennsylvania, is a historic 19th-century federal building designed in the ornate Second Empire style by Supervising Architect Alfred B. Mullett.
-
B.
Allegheny County Courthouse, Pittsburgh
The Allegheny County Courthouse in Pittsburgh is a landmark 19th-century civic building designed by Henry Hobson Richardson and celebrated as one of the finest examples of Richardsonian Romanesque architecture.
-
C.
Gulf Building, Pittsburgh
The Gulf Building in Pittsburgh is a historic skyscraper that once served as the iconic headquarters of the Gulf Oil Corporation and remains a prominent feature of the city's skyline.
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D.
U.S. Post Office and Courthouse (Cincinnati, Ohio)
The U.S. Post Office and Courthouse in Cincinnati, Ohio is a historic 19th-century federal building known for its grand Second Empire architectural style and its role as a major regional center for postal and judicial functions.
-
E.
U.S. Post Office and Courthouse (Philadelphia, Pennsylvania)
The U.S. Post Office and Courthouse in Philadelphia, Pennsylvania, is a historic 19th-century federal building designed in the ornate Second Empire style by Supervising Architect Alfred B. Mullett.
- 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: U.S. Post Office and Courthouse, Pittsburgh Target entity description: The U.S. Post Office and Courthouse in Pittsburgh is a historic federal building designed by architect Egerton Swartwout, notable for its grand Beaux-Arts architecture and combined postal and judicial functions.
-
A.
U.S. Courthouse and Post Office (Pittsburgh, Pennsylvania)
The U.S. Courthouse and Post Office in Pittsburgh, Pennsylvania, is a historic 19th-century federal building designed in the ornate Second Empire style by Supervising Architect Alfred B. Mullett.
-
B.
Allegheny County Courthouse, Pittsburgh
The Allegheny County Courthouse in Pittsburgh is a landmark 19th-century civic building designed by Henry Hobson Richardson and celebrated as one of the finest examples of Richardsonian Romanesque architecture.
-
C.
Gulf Building, Pittsburgh
The Gulf Building in Pittsburgh is a historic skyscraper that once served as the iconic headquarters of the Gulf Oil Corporation and remains a prominent feature of the city's skyline.
-
D.
U.S. Post Office and Courthouse (Cincinnati, Ohio)
The U.S. Post Office and Courthouse in Cincinnati, Ohio is a historic 19th-century federal building known for its grand Second Empire architectural style and its role as a major regional center for postal and judicial functions.
-
E.
U.S. Post Office and Courthouse (Philadelphia, Pennsylvania)
The U.S. Post Office and Courthouse in Philadelphia, Pennsylvania, is a historic 19th-century federal building designed in the ornate Second Empire style by Supervising Architect Alfred B. Mullett.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Beaux-Arts building
ⓘ
courthouse ⓘ historic federal building ⓘ post office building ⓘ |
| architect | Egerton Swartwout ⓘ |
| architecturalStyle | Beaux-Arts ⓘ |
| buildingType | civic building ⓘ |
| category |
Beaux-Arts architecture in Pennsylvania
ⓘ
United States Post Office buildings ⓘ
linked to:
United States Post Office
United States federal courthouses ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| function |
federal courthouse
ⓘ
post office ⓘ |
| governingBody |
federal government of the United States
ⓘ
linked to:
United States government
|
| hasPart |
courtrooms
ⓘ
offices ⓘ postal facilities ⓘ public lobby ⓘ |
| heritageDesignation | historic building ⓘ |
| locatedIn |
Allegheny County, Pennsylvania
ⓘ
linked to:
Allegheny County
Pennsylvania ⓘ Pittsburgh, Pennsylvania ⓘ |
| locatedInCityCenter | true ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| namedAfter | United States Post Office and Courthouse ⓘ |
| owner | United States government ⓘ |
| significance |
combined postal and judicial functions in one federal building
ⓘ
example of grand Beaux-Arts civic architecture ⓘ |
| usedBy |
United States Postal Service
ⓘ
federal judiciary of the United States ⓘ |
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: U.S. Post Office and Courthouse, Pittsburgh Description of subject: The U.S. Post Office and Courthouse in Pittsburgh is a historic federal building designed by architect Egerton Swartwout, notable for its grand Beaux-Arts architecture and combined postal and judicial functions.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: U.S. Post Office and Courthouse, Pittsburgh