Arlington Hall
E369025
Arlington Hall is a former girls' school in Arlington, Virginia, that became a major U.S. Army codebreaking and intelligence center during World War II and the early Cold War.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Arlington Hall canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3577567 — 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: Arlington Hall Context triple: [Armed Forces Security Agency, headquartersLocation, Arlington Hall]
-
A.
Greenspun Hall
Greenspun Hall is an academic building at the University of Nevada, Las Vegas, best known as the home of the Greenspun College of Urban Affairs and its journalism and media programs.
-
B.
Arlington Estate
Arlington Estate is the historic Virginia plantation that served as the home of the Custis-Lee family and later became the site of Arlington National Cemetery.
-
C.
Knox Hall
Knox Hall is an academic building on Columbia University’s Morningside Heights campus that houses various departments and classrooms.
-
D.
Harmony Hall
Harmony Hall is a historic 18th-century Georgian-style mansion and estate located along the Potomac River in Prince George’s County, Maryland.
-
E.
Uniacke Barracks
Uniacke Barracks is a British Army installation in Harrogate that serves as the home of the Army Foundation College for training junior soldiers.
- 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: Arlington Hall Target entity description: Arlington Hall is a former girls' school in Arlington, Virginia, that became a major U.S. Army codebreaking and intelligence center during World War II and the early Cold War.
-
A.
Greenspun Hall
Greenspun Hall is an academic building at the University of Nevada, Las Vegas, best known as the home of the Greenspun College of Urban Affairs and its journalism and media programs.
-
B.
Arlington Estate
Arlington Estate is the historic Virginia plantation that served as the home of the Custis-Lee family and later became the site of Arlington National Cemetery.
-
C.
Knox Hall
Knox Hall is an academic building on Columbia University’s Morningside Heights campus that houses various departments and classrooms.
-
D.
Harmony Hall
Harmony Hall is a historic 18th-century Georgian-style mansion and estate located along the Potomac River in Prince George’s County, Maryland.
-
E.
Uniacke Barracks
Uniacke Barracks is a British Army installation in Harrogate that serves as the home of the Army Foundation College for training junior soldiers.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
codebreaking center
ⓘ
former girls' school ⓘ intelligence facility ⓘ |
| associatedWith |
Army Security Agency
ⓘ
linked to:
United States Army Security Agency
National Security Agency headquarters precursor ⓘ Signal Intelligence Service ⓘ |
| convertedFrom | girls' finishing school ⓘ |
| country | United States of America ⓘ |
| era | 20th century ⓘ |
| field |
cryptology
ⓘ
military intelligence ⓘ signals intelligence (SIGINT) ⓘ |
| historicalRole |
central site for U.S. Army codebreaking against Axis powers
ⓘ
early home of U.S. national-level signals intelligence ⓘ |
| locatedIn |
Arlington County, Virginia
ⓘ
linked to:
Arlington County
Arlington, Virginia ⓘ Virginia ⓘ Washington, D.C. metropolitan area ⓘ
linked to:
Washington metropolitan area
|
| militaryUse |
communications interception analysis
ⓘ
cryptanalytic operations ⓘ signals intelligence training ⓘ |
| near |
Pentagon
ⓘ
Washington, D.C. ⓘ |
| notableActivity |
analysis of foreign communications
ⓘ
codebreaking of Japanese diplomatic codes ⓘ |
| operatedBy |
U.S. Department of Defense
ⓘ
linked to:
Department of Defense
U.S. War Department ⓘ
linked to:
United States Department of War
|
| originalUse | private girls' school ⓘ |
| partOf | U.S. military intelligence infrastructure ⓘ |
| primaryFunction |
codebreaking
ⓘ
cryptanalysis ⓘ signals intelligence ⓘ |
| securityClassification |
highly classified during World War II
ⓘ
highly classified during early Cold War ⓘ |
| significance |
key U.S. intelligence site in early Cold War
ⓘ
major U.S. Army codebreaking center in World War II ⓘ |
| status | former military intelligence site ⓘ |
| typeOfLocation | campus ⓘ |
| usedBy |
National Security Agency
ⓘ
U.S. Army Security Agency ⓘ
linked to:
United States Army Security Agency
U.S. Army Signal Intelligence Service ⓘ United States Army ⓘ |
| usedDuring |
World War II
ⓘ
early Cold War ⓘ |
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: Arlington Hall Description of subject: Arlington Hall is a former girls' school in Arlington, Virginia, that became a major U.S. Army codebreaking and intelligence center during World War II and the early Cold War.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.