U.S. Post Office and Courthouse (Cairo, Illinois)
E471898
The U.S. Post Office and Courthouse in Cairo, Illinois is a historic 19th-century federal building designed by prominent architect Alfred B. Mullett, notable for its grand Second Empire style and role in federal judicial and postal services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| U.S. Post Office and Courthouse (Cairo, Illinois) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4819110 — 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 (Cairo, Illinois) Context triple: [Alfred B. Mullett, notableWork, U.S. Post Office and Courthouse (Cairo, Illinois)]
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A.
Illinois Supreme Court Building
The Illinois Supreme Court Building is the historic judicial edifice in Springfield that houses the highest court of the state of Illinois.
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B.
McHenry County Courthouse
The McHenry County Courthouse is the primary judicial facility serving McHenry County, Illinois, housing the courts and administrative offices of the 22nd Judicial Circuit.
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C.
Rock Island courthouse
The Rock Island courthouse is a federal judicial building in Rock Island, Illinois, that serves as one of the locations where the U.S. District Court for the Central District of Illinois conducts its proceedings.
-
D.
Cook County Building
The Cook County Building is a major government office structure in downtown Chicago that houses key administrative functions of Cook County.
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E.
Springfield City Hall
Springfield City Hall is the central municipal government building of Springfield, housing key administrative offices and serving as the primary venue for official city business and public meetings.
- 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 (Cairo, Illinois) Target entity description: The U.S. Post Office and Courthouse in Cairo, Illinois is a historic 19th-century federal building designed by prominent architect Alfred B. Mullett, notable for its grand Second Empire style and role in federal judicial and postal services.
-
A.
Illinois Supreme Court Building
The Illinois Supreme Court Building is the historic judicial edifice in Springfield that houses the highest court of the state of Illinois.
-
B.
McHenry County Courthouse
The McHenry County Courthouse is the primary judicial facility serving McHenry County, Illinois, housing the courts and administrative offices of the 22nd Judicial Circuit.
-
C.
Rock Island courthouse
The Rock Island courthouse is a federal judicial building in Rock Island, Illinois, that serves as one of the locations where the U.S. District Court for the Central District of Illinois conducts its proceedings.
-
D.
Cook County Building
The Cook County Building is a major government office structure in downtown Chicago that houses key administrative functions of Cook County.
-
E.
Springfield City Hall
Springfield City Hall is the central municipal government building of Springfield, housing key administrative offices and serving as the primary venue for official city business and public meetings.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
courthouse
ⓘ
government building ⓘ historic federal building ⓘ post office ⓘ |
| architect | Alfred B. Mullett NERFINISHED ⓘ |
| architectRole | Alfred B. Mullett served as Supervising Architect of the U.S. Treasury NERFINISHED ⓘ |
| architecturalStyle | Second Empire ⓘ |
| category |
Government buildings completed in the 19th century
ⓘ
Post office buildings in Illinois ⓘ Second Empire architecture in Illinois ⓘ United States federal courthouses in Illinois ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| era | 19th century ⓘ |
| function |
U.S. post office
NERFINISHED
ⓘ
federal courthouse ⓘ |
| governmentBody | United States federal government NERFINISHED ⓘ |
| hasArchitecturalFeature |
ornate roofline
ⓘ
prominent central pavilion ⓘ symmetrical facade ⓘ |
| heritageDesignation | listed on the National Register of Historic Places ⓘ |
| heritageStatus | historic building ⓘ |
| jurisdiction | federal judiciary of the United States ⓘ |
| locatedIn |
Alexander County, Illinois
NERFINISHED
ⓘ
Cairo, Illinois NERFINISHED ⓘ Illinois ⓘ United States of America ⓘ
surface form:
United States
|
| material | masonry construction ⓘ |
| notableFor |
grand Second Empire style design
ⓘ
role in federal judicial and postal services in Cairo ⓘ |
| NRHPCountry | United States NERFINISHED ⓘ |
| NRHPType | individually listed property ⓘ |
| owner | United States government NERFINISHED ⓘ |
| partOf | portfolio of U.S. federal buildings designed by Alfred B. Mullett ⓘ |
| postalService | United States Postal Service NERFINISHED ⓘ |
| regionServed | southern Illinois NERFINISHED ⓘ |
| roofStyle | mansard roof ⓘ |
| significance |
associated with federal judicial services in southern Illinois
ⓘ
associated with federal postal services in Cairo, Illinois ⓘ example of 19th-century federal architecture ⓘ example of Second Empire civic architecture ⓘ |
| usedFor |
administration of federal law
ⓘ
mail distribution ⓘ |
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 (Cairo, Illinois) Description of subject: The U.S. Post Office and Courthouse in Cairo, Illinois is a historic 19th-century federal building designed by prominent architect Alfred B. Mullett, notable for its grand Second Empire style and role in federal judicial and postal services.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.