U.S. Courthouse and Post Office (Pittsburgh, Pennsylvania)
E471908
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| U.S. Courthouse and Post Office (Pittsburgh, Pennsylvania) canonical | 1 |
| U.S. Post Office and Courthouse (Pittsburgh, Pennsylvania) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4819142 — 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. Courthouse and Post Office (Pittsburgh, Pennsylvania) Context triple: [Alfred B. Mullett, notableWork, U.S. Courthouse and Post Office (Pittsburgh, Pennsylvania)]
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A.
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.
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B.
United States Courthouse, Philadelphia
The United States Courthouse in Philadelphia is a prominent federal judicial building known for its modern architectural design by Romaldo Giurgola.
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C.
Thomas F. Eagleton United States Courthouse
The Thomas F. Eagleton United States Courthouse is a major federal courthouse in St. Louis, Missouri, notable for housing the United States Court of Appeals for the Eighth Circuit and being one of the largest U.S. federal court buildings.
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D.
Erie federal courthouse
The Erie federal courthouse is a federal judicial building in Erie, Pennsylvania, that houses proceedings of the U.S. District Court for the Western District of Pennsylvania.
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E.
Potter Stewart United States Courthouse
The Potter Stewart United States Courthouse is a federal courthouse in Cincinnati, Ohio, named after Supreme Court Justice Potter Stewart and serving as a primary venue for the U.S. Court of Appeals for the Sixth Circuit.
- 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. Courthouse and Post Office (Pittsburgh, Pennsylvania) Target entity description: 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.
-
A.
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.
-
B.
United States Courthouse, Philadelphia
The United States Courthouse in Philadelphia is a prominent federal judicial building known for its modern architectural design by Romaldo Giurgola.
-
C.
Thomas F. Eagleton United States Courthouse
The Thomas F. Eagleton United States Courthouse is a major federal courthouse in St. Louis, Missouri, notable for housing the United States Court of Appeals for the Eighth Circuit and being one of the largest U.S. federal court buildings.
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D.
Erie federal courthouse
The Erie federal courthouse is a federal judicial building in Erie, Pennsylvania, that houses proceedings of the U.S. District Court for the Western District of Pennsylvania.
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E.
Potter Stewart United States Courthouse
The Potter Stewart United States Courthouse is a federal courthouse in Cincinnati, Ohio, named after Supreme Court Justice Potter Stewart and serving as a primary venue for the U.S. Court of Appeals for the Sixth Circuit.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
courthouse
ⓘ
government building ⓘ historic federal building ⓘ post office building ⓘ |
| architect | Alfred B. Mullett NERFINISHED ⓘ |
| architecturalFeature |
mansard roof
ⓘ
ornate detailing ⓘ symmetrical façade ⓘ |
| architecturalStyle | Second Empire ⓘ |
| category |
Courthouses in Pennsylvania
ⓘ
Government buildings in Pittsburgh ⓘ Post office buildings in Pennsylvania ⓘ Second Empire architecture in Pennsylvania ⓘ |
| continent | North America ⓘ |
| country | United States of America ⓘ |
| designedIn | 19th century ⓘ |
| function |
administration of federal justice
ⓘ
processing of U.S. mail ⓘ |
| hasArchitecturalStyleCharacteristic | ornate Second Empire style ⓘ |
| heritageDesignation | listed on the National Register of Historic Places ⓘ |
| heritageStatus | historic 19th-century building ⓘ |
| locatedInTheAdministrativeTerritorialEntity |
Allegheny County, Pennsylvania
NERFINISHED
ⓘ
Pennsylvania NERFINISHED ⓘ |
| location | Pittsburgh, Pennsylvania NERFINISHED ⓘ |
| maintainedBy | General Services Administration NERFINISHED ⓘ |
| namedAfter | United States government functions of courts and postal service ⓘ |
| owner |
United States government
ⓘ
surface form:
United States federal government
|
| partOf | federal court system of the United States ⓘ |
| supervisingArchitect | Alfred B. Mullett NERFINISHED ⓘ |
| use |
United States Post Office
NERFINISHED
ⓘ
federal courthouse ⓘ |
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. Courthouse and Post Office (Pittsburgh, Pennsylvania) Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
U.S. Post Office and Courthouse (Pittsburgh, Pennsylvania)