United States Courthouse, Los Angeles (First Street Courthouse)
E254414
The United States Courthouse (First Street Courthouse) in Los Angeles is a modern federal courthouse that houses U.S. District Court operations and related federal judicial offices in the heart of downtown.
All labels observed (3)
| Label | Occurrences |
|---|---|
| First Street U.S. Courthouse, Los Angeles | 1 |
| U.S. Courthouse, First Street | 1 |
| United States Courthouse, Los Angeles (First Street Courthouse) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2306159 — 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: United States Courthouse, Los Angeles (First Street Courthouse) Context triple: [Civic Center, Downtown Los Angeles, contains, United States Courthouse, Los Angeles (First Street Courthouse)]
-
A.
Stanley Mosk Courthouse
The Stanley Mosk Courthouse is a major downtown Los Angeles judicial complex that serves as one of the primary trial court facilities for Los Angeles County.
-
B.
John Joseph Moakley United States Courthouse
The John Joseph Moakley United States Courthouse is a prominent federal courthouse and judicial complex located on Boston’s waterfront that houses the U.S. District Court for the District of Massachusetts and the U.S. Court of Appeals for the First Circuit.
-
C.
William K. Nakamura United States Courthouse
The William K. Nakamura United States Courthouse is a federal judicial building in Seattle, Washington, named in honor of World War II Medal of Honor recipient William Kenzo Nakamura.
-
D.
Byron White United States Courthouse
The Byron White United States Courthouse is a historic federal courthouse in Denver, Colorado, that serves as the home of the U.S. Court of Appeals for the Tenth Circuit.
-
E.
Riverside County Historic Courthouse
Riverside County Historic Courthouse is a Beaux-Arts style landmark courthouse in downtown Riverside, California, renowned for its grand architecture and role as a centerpiece of the city's civic and historic district.
- 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: United States Courthouse, Los Angeles (First Street Courthouse) Target entity description: The United States Courthouse (First Street Courthouse) in Los Angeles is a modern federal courthouse that houses U.S. District Court operations and related federal judicial offices in the heart of downtown.
-
A.
Stanley Mosk Courthouse
The Stanley Mosk Courthouse is a major downtown Los Angeles judicial complex that serves as one of the primary trial court facilities for Los Angeles County.
-
B.
John Joseph Moakley United States Courthouse
The John Joseph Moakley United States Courthouse is a prominent federal courthouse and judicial complex located on Boston’s waterfront that houses the U.S. District Court for the District of Massachusetts and the U.S. Court of Appeals for the First Circuit.
-
C.
William K. Nakamura United States Courthouse
The William K. Nakamura United States Courthouse is a federal judicial building in Seattle, Washington, named in honor of World War II Medal of Honor recipient William Kenzo Nakamura.
-
D.
Byron White United States Courthouse
The Byron White United States Courthouse is a historic federal courthouse in Denver, Colorado, that serves as the home of the U.S. Court of Appeals for the Tenth Circuit.
-
E.
Riverside County Historic Courthouse
Riverside County Historic Courthouse is a Beaux-Arts style landmark courthouse in downtown Riverside, California, renowned for its grand architecture and role as a centerpiece of the city's civic and historic district.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
federal courthouse
ⓘ
government building ⓘ |
| access | open to the public subject to security screening ⓘ |
| alsoKnownAs |
First Street Courthouse
ⓘ
United States Courthouse, Los Angeles (First Street Courthouse) ⓘ
surface form:
U.S. Courthouse, First Street
|
| architecturalStyle | modern ⓘ |
| buildingType | courthouse ⓘ |
| category |
Buildings and structures in downtown Los Angeles
ⓘ
United States federal courthouses in California ⓘ |
| cityServed | Los Angeles ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
federal judiciary operations
ⓘ
trial court facility ⓘ |
| governingBody | Judicial Conference of the United States ⓘ |
| hasFacility |
clerks’ offices
ⓘ
courtrooms ⓘ judges’ chambers ⓘ public lobbies ⓘ security screening area ⓘ |
| hasJurisdictionLevel | federal ⓘ |
| hasSecurity | federal courthouse security measures ⓘ |
| houses |
United States District Court for the Central District of California
ⓘ
federal judicial offices ⓘ |
| isPublicBuilding | true ⓘ |
| jurisdictionServed | Central District of California ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Los Angeles ⓘ downtown Los Angeles ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| managedBy | U.S. General Services Administration ⓘ |
| ownedBy | United States government ⓘ |
| partOf | federal court system of the United States ⓘ |
| postalCode | 90012 ⓘ |
| primaryUse |
federal court proceedings
ⓘ
federal judicial administration ⓘ |
| regionServed | Southern California ⓘ |
| servesAs | seat for federal district judges in Los Angeles ⓘ |
| streetAddress | 350 West 1st Street ⓘ |
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: United States Courthouse, Los Angeles (First Street Courthouse) Description of subject: The United States Courthouse (First Street Courthouse) in Los Angeles is a modern federal courthouse that houses U.S. District Court operations and related federal judicial offices in the heart of downtown.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
Civic Center, Downtown Los Angeles
→
contains
→
United States Courthouse, Los Angeles (First Street Courthouse)
ⓘ
United States Courthouse, Los Angeles (First Street Courthouse)
→
alsoKnownAs
→
United States Courthouse, Los Angeles (First Street Courthouse)
ⓘ
this entity surface form:
U.S. Courthouse, First Street
this entity surface form:
First Street U.S. Courthouse, Los Angeles