U.S. Post Office and Courthouse (Philadelphia, Pennsylvania)
E471900
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| U.S. Post Office and Courthouse (Philadelphia, Pennsylvania) canonical | 1 |
| U.S. Post Office and Courthouse, Philadelphia, Pennsylvania | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4819113 — 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 (Philadelphia, Pennsylvania) Context triple: [Alfred B. Mullett, notableWork, U.S. Post Office and Courthouse (Philadelphia, Pennsylvania)]
-
A.
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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B.
John W. McCormack Post Office and Courthouse
The John W. McCormack Post Office and Courthouse is a historic federal building in downtown Boston that houses courtrooms and government offices and is named after former Speaker of the U.S. House John W. McCormack.
-
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.
-
D.
Ronald Reagan Federal Building and Courthouse, Harrisburg
The Ronald Reagan Federal Building and Courthouse in Harrisburg is a federal facility that houses courtrooms and offices for the U.S. government, serving as a key judicial center in Pennsylvania’s capital city.
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E.
Lewis F. Powell Jr. United States Courthouse
The Lewis F. Powell Jr. United States Courthouse is a historic federal courthouse in Richmond, Virginia, named after Supreme Court Justice Lewis F. Powell Jr.
- 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 (Philadelphia, Pennsylvania) Target entity description: 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.
-
A.
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.
-
B.
John W. McCormack Post Office and Courthouse
The John W. McCormack Post Office and Courthouse is a historic federal building in downtown Boston that houses courtrooms and government offices and is named after former Speaker of the U.S. House John W. McCormack.
-
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.
-
D.
Ronald Reagan Federal Building and Courthouse, Harrisburg
The Ronald Reagan Federal Building and Courthouse in Harrisburg is a federal facility that houses courtrooms and offices for the U.S. government, serving as a key judicial center in Pennsylvania’s capital city.
-
E.
Lewis F. Powell Jr. United States Courthouse
The Lewis F. Powell Jr. United States Courthouse is a historic federal courthouse in Richmond, Virginia, named after Supreme Court Justice Lewis F. Powell Jr.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
courthouse
ⓘ
historic federal building ⓘ post office ⓘ |
| architect | Alfred B. Mullett ⓘ |
| architecturalPeriod | 19th century ⓘ |
| architecturalStyle | Second Empire ⓘ |
| associatedWith | U.S. Treasury Department Office of the Supervising Architect ⓘ |
| buildingType | federal government building ⓘ |
| category |
Courthouses in Philadelphia
ⓘ
Federal buildings in Philadelphia ⓘ Post office buildings in Pennsylvania ⓘ Second Empire architecture in Pennsylvania ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designedByOffice | Office of the Supervising Architect of the U.S. Treasury ⓘ |
| designedFor |
federal judiciary
ⓘ
federal postal operations ⓘ |
| governmentBody |
United States federal government
ⓘ
linked to:
United States government
|
| hasArchitecturalInfluence |
French Second Empire architecture
ⓘ
linked to:
Second Empire
|
| hasFeature |
central pavilion
ⓘ
ornamental roofline ⓘ symmetrical façade ⓘ |
| hasFunction |
administrative
ⓘ
judicial ⓘ postal ⓘ |
| hasJurisdiction | federal ⓘ |
| heritageDesignation | historic building ⓘ |
| historicSignificance |
example of 19th-century federal architecture
ⓘ
example of Second Empire civic architecture ⓘ |
| locatedIn |
Pennsylvania
ⓘ
Philadelphia, Pennsylvania ⓘ
linked to:
Philadelphia
United States ⓘ
linked to:
United States of America
|
| locatedInCityCenter | Philadelphia ⓘ |
| locatedInMetropolitanArea | Philadelphia metropolitan area ⓘ |
| materialUse |
masonry
ⓘ
stone ⓘ |
| partOf |
United States Post Office system
ⓘ
linked to:
United States Post Office
federal courthouse system of the United States ⓘ |
| region | Northeastern United States ⓘ |
| styleCharacteristic |
elaborate ornamentation
ⓘ
mansard roof ⓘ ornate design ⓘ |
| supervisingArchitect | Alfred B. Mullett ⓘ |
| usedFor |
federal court functions
ⓘ
postal services ⓘ |
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 (Philadelphia, Pennsylvania) Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: U.S. Post Office and Courthouse (Philadelphia, Pennsylvania)