National Security Agency headquarters (Fort Meade)
E912854
The National Security Agency headquarters at Fort Meade is the primary command center and main campus of the U.S. signals intelligence and cybersecurity agency.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T11227214 — 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: National Security Agency headquarters (Fort Meade) Context triple: [Odenton, hasNearbyInstallation, National Security Agency headquarters (Fort Meade)]
-
A.
Fort Meade, Maryland
Fort Meade, Maryland is a major U.S. Army installation best known as the primary center for American military intelligence and cybersecurity operations.
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B.
DISA headquarters
DISA headquarters is the central command and administrative center of the Defense Information Systems Agency, overseeing its global communications and information technology operations for the U.S. Department of Defense.
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C.
Aberdeen Proving Ground, Maryland
Aberdeen Proving Ground, Maryland is a major U.S. Army installation known for weapons testing, research, and development, particularly in ordnance and chemical defense.
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D.
Beltsville, Maryland
Beltsville, Maryland is a suburban community in Prince George's County known in part for hosting major federal facilities, including a key United States Secret Service training center.
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E.
Fort Belvoir
Fort Belvoir is a major United States Army installation in Fairfax County, Virginia, that serves as a key administrative and logistical hub for numerous military and defense agencies.
- 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: National Security Agency headquarters (Fort Meade) Target entity description: The National Security Agency headquarters at Fort Meade is the primary command center and main campus of the U.S. signals intelligence and cybersecurity agency.
-
A.
Fort Meade, Maryland
Fort Meade, Maryland is a major U.S. Army installation best known as the primary center for American military intelligence and cybersecurity operations.
-
B.
DISA headquarters
DISA headquarters is the central command and administrative center of the Defense Information Systems Agency, overseeing its global communications and information technology operations for the U.S. Department of Defense.
-
C.
Aberdeen Proving Ground, Maryland
Aberdeen Proving Ground, Maryland is a major U.S. Army installation known for weapons testing, research, and development, particularly in ordnance and chemical defense.
-
D.
Beltsville, Maryland
Beltsville, Maryland is a suburban community in Prince George's County known in part for hosting major federal facilities, including a key United States Secret Service training center.
-
E.
Fort Belvoir
Fort Belvoir is a major United States Army installation in Fairfax County, Virginia, that serves as a key administrative and logistical hub for numerous military and defense agencies.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
government facility
ⓘ
intelligence agency headquarters ⓘ office building complex ⓘ |
| associatedWith |
Central Security Service
NERFINISHED
ⓘ
United States Cyber Command NERFINISHED ⓘ |
| buildingUse | 24-hour operations ⓘ |
| contains |
administrative offices
ⓘ
analysis and production facilities ⓘ classified communications infrastructure ⓘ data centers ⓘ operations centers ⓘ secure conference rooms ⓘ signals intelligence collection facilities ⓘ training facilities ⓘ |
| coordinates | 39.108°N 76.772°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| employer |
civilian intelligence personnel
ⓘ
contractor workforce ⓘ military personnel ⓘ |
| hasAbbreviation | NSA headquarters at Fort Meade NERFINISHED ⓘ |
| hasAccessControl |
badge-controlled internal access
ⓘ
guarded entry checkpoints ⓘ secure perimeter fencing ⓘ |
| hasInfrastructure |
large parking structures
ⓘ
on-site power and cooling facilities ⓘ secure communications networks ⓘ |
| locatedIn |
Anne Arundel County, Maryland
NERFINISHED
ⓘ
Fort George G. Meade NERFINISHED ⓘ Maryland ⓘ United States of America ⓘ
surface form:
United States
|
| near |
Baltimore, Maryland
NERFINISHED
ⓘ
Baltimore–Washington metropolitan area NERFINISHED ⓘ Washington, D.C. NERFINISHED ⓘ |
| operator | National Security Agency NERFINISHED ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf |
Fort George G. Meade military installation
NERFINISHED
ⓘ
U.S. intelligence community infrastructure NERFINISHED ⓘ |
| primaryFunction |
cryptologic operations
ⓘ
cybersecurity operations ⓘ intelligence analysis ⓘ signals intelligence operations ⓘ |
| securityLevel | highly classified facility ⓘ |
| servesAs |
main campus of the National Security Agency
ⓘ
primary command center of the National Security Agency ⓘ |
| subjectOf |
U.S. government security policies
ⓘ
public debates on surveillance and privacy ⓘ |
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: National Security Agency headquarters (Fort Meade) Description of subject: The National Security Agency headquarters at Fort Meade is the primary command center and main campus of the U.S. signals intelligence and cybersecurity agency.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
National Security Agency headquarters
this entity surface form:
National Security Agency complex
this entity surface form:
National Security Agency headquarters precursor
subject surface form:
Laurel, Maryland
this entity surface form:
National Security Agency headquarters