SFRA
E244196
SFRA is the restricted airspace surrounding Washington, D.C., where special security-related flight rules and procedures apply to all aircraft operations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SFRA canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2229500 — 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: SFRA Context triple: [Washington DC Special Flight Rules Area, abbreviation, SFRA]
-
A.
FRSA
FRSA is the post-nominal designation for a Fellow of the Royal Society of Arts, an honor recognizing significant contributions to social progress and development in the arts, manufacturing, and commerce.
-
B.
FRA
FRA is the three-letter ISO 3166-1 alpha-3 country code that uniquely identifies France in international standards and data systems.
-
C.
FRA
FRA is the United States government agency responsible for regulating and overseeing the nation’s railroad safety, infrastructure, and operations.
-
D.
SF
SF is the standard two-letter postal abbreviation used to represent the city of San Francisco, California.
-
E.
SARA
SARA is the common short name for the U.S. Superfund Amendments and Reauthorization Act, which expanded and strengthened the federal Superfund program for cleaning up hazardous waste sites.
- 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: SFRA Target entity description: SFRA is the restricted airspace surrounding Washington, D.C., where special security-related flight rules and procedures apply to all aircraft operations.
-
A.
FRSA
FRSA is the post-nominal designation for a Fellow of the Royal Society of Arts, an honor recognizing significant contributions to social progress and development in the arts, manufacturing, and commerce.
-
B.
FRA
FRA is the three-letter ISO 3166-1 alpha-3 country code that uniquely identifies France in international standards and data systems.
-
C.
FRA
FRA is the United States government agency responsible for regulating and overseeing the nation’s railroad safety, infrastructure, and operations.
-
D.
SF
SF is the standard two-letter postal abbreviation used to represent the city of San Francisco, California.
-
E.
SARA
SARA is the common short name for the U.S. Superfund Amendments and Reauthorization Act, which expanded and strengthened the federal Superfund program for cleaning up hazardous waste sites.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
restricted airspace
ⓘ
special flight rules area ⓘ |
| alsoKnownAs |
DC SFRA
ⓘ
Washington, DC SFRA ⓘ |
| appliesTo |
all aircraft operations
ⓘ
commercial aircraft ⓘ general aviation aircraft ⓘ military aircraft ⓘ |
| contains |
FRZ
ⓘ
Flight Restricted Zone ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| documentedIn |
Aeronautical Information Manual
ⓘ
surface form:
FAA Aeronautical Information Manual
NOTAMs ⓘ notices to air missions ⓘ |
| enforcedBy |
North American Aerospace Defense Command
ⓘ
surface form:
NORAD
North American Aerospace Defense Command ⓘ Transportation Security Administration ⓘ
surface form:
TSA
Transportation Security Administration ⓘ air traffic control ⓘ |
| establishedFor |
national security
ⓘ
protection of Washington, D.C. airspace ⓘ |
| fullName |
Washington DC Special Flight Rules Area
ⓘ
surface form:
Washington, D.C. Special Flight Rules Area
|
| governedBy |
FAA
ⓘ
Federal Aviation Administration ⓘ |
| hasAbbreviation | SFRA self-link ⓘ |
| hasCharacteristic |
enhanced airspace restrictions
ⓘ
special flight procedures ⓘ special security-related flight rules ⓘ |
| hasPurpose |
control and monitor aircraft near Washington, D.C.
ⓘ
reduce risk of airborne threats to federal government facilities ⓘ |
| hasType | airspace security measure ⓘ |
| locatedIn |
Washington metropolitan area
ⓘ
surface form:
Washington, D.C. region
|
| partOf |
Washington DC Special Flight Rules Area
ⓘ
surface form:
National Capital Region airspace
|
| regulatedBy |
14 CFR
ⓘ
Code of Federal Regulations ⓘ |
| relatedTo |
Class B airspace
ⓘ
surface form:
Class B airspace around Washington, D.C.
|
| requires |
continuous two-way radio communication with ATC
ⓘ
discrete transponder code ⓘ operable transponder with altitude reporting ⓘ pilot familiarity with SFRA procedures ⓘ specific flight plan procedures ⓘ |
| securityContext | post-September 11 security measures ⓘ |
| standsFor | Special Flight Rules Area ⓘ |
| violationConsequences |
certificate action against pilots
ⓘ
civil penalties ⓘ possible interception by military aircraft ⓘ |
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: SFRA Description of subject: SFRA is the restricted airspace surrounding Washington, D.C., where special security-related flight rules and procedures apply to all aircraft operations.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.