509th Maintenance Group
E1004781
The 509th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support, notably for the B-2 Spirit stealth bomber fleet.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 509th Maintenance Group canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T12833446 — 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: 509th Maintenance Group Context triple: [Whiteman Air Force Base, hasUnit, 509th Maintenance Group]
-
A.
459th Maintenance Group
The 459th Maintenance Group is a U.S. Air Force Reserve unit responsible for maintaining and supporting the aircraft and equipment of the 459th Air Refueling Wing.
-
B.
55th Maintenance Group
The 55th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support to the 55th Wing’s operations.
-
C.
57th Maintenance Group
The 57th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support to the 57th Wing at Nellis Air Force Base.
-
D.
89th Maintenance Group
The 89th Maintenance Group is a U.S. Air Force unit responsible for providing aircraft maintenance and logistics support, notably for the special airlift missions associated with senior government and military leaders.
-
E.
48th Maintenance Group
The 48th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support to the 48th Fighter Wing at RAF Lakenheath in the United Kingdom.
- 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: 509th Maintenance Group Target entity description: The 509th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support, notably for the B-2 Spirit stealth bomber fleet.
-
A.
459th Maintenance Group
The 459th Maintenance Group is a U.S. Air Force Reserve unit responsible for maintaining and supporting the aircraft and equipment of the 459th Air Refueling Wing.
-
B.
55th Maintenance Group
The 55th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support to the 55th Wing’s operations.
-
C.
57th Maintenance Group
The 57th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support to the 57th Wing at Nellis Air Force Base.
-
D.
89th Maintenance Group
The 89th Maintenance Group is a U.S. Air Force unit responsible for providing aircraft maintenance and logistics support, notably for the special airlift missions associated with senior government and military leaders.
-
E.
48th Maintenance Group
The 48th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support to the 48th Fighter Wing at RAF Lakenheath in the United Kingdom.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
United States Air Force maintenance group
ⓘ
military unit ⓘ |
| aircraftTypeSupported |
long-range bomber
ⓘ
stealth bomber ⓘ |
| associatedWeaponSystem |
B-2 Spirit stealth bomber
ⓘ
linked to:
B-2 Spirit
|
| country |
United States
ⓘ
linked to:
United States of America
|
| equipmentMaintained |
aerospace ground equipment
ⓘ
support equipment for B-2 Spirit ⓘ |
| garrisonLocation |
Missouri
ⓘ
Whiteman Air Force Base ⓘ
linked to:
Whiteman Air Force Base, Missouri
|
| militaryBranch | United States Air Force ⓘ |
| mission |
ensure mission-capable status of B-2 Spirit bombers
ⓘ
provide combat-ready aircraft and equipment ⓘ |
| notableFor | maintenance support for the B-2 Spirit fleet ⓘ |
| operationalFocus |
combat-ready sortie generation
ⓘ
low-observable aircraft maintenance ⓘ |
| partOf | 509th Bomb Wing ⓘ |
| primaryBase | Whiteman Air Force Base, Missouri ⓘ |
| responsibility |
aerospace ground equipment maintenance
ⓘ
aircraft inspection ⓘ aircraft modification ⓘ aircraft repair ⓘ intermediate-level maintenance ⓘ maintenance training ⓘ munitions maintenance support ⓘ organizational-level maintenance ⓘ |
| role |
aircraft maintenance
ⓘ
equipment maintenance ⓘ |
| serviceComponent | active duty ⓘ |
| subordinateTo |
Air Force Global Strike Command
ⓘ
Eighth Air Force ⓘ |
| supportsAircraft | B-2 Spirit ⓘ |
| supportsCapability |
conventional global strike
ⓘ
nuclear global strike ⓘ stealth strike operations ⓘ |
| supportsMissionType |
global strike operations
ⓘ
nuclear deterrence ⓘ strategic bombing ⓘ |
| supportsUnit | 509th Operations Group ⓘ |
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: 509th Maintenance Group Description of subject: The 509th Maintenance Group is a United States Air Force unit responsible for providing aircraft and equipment maintenance support, notably for the B-2 Spirit stealth bomber fleet.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Whiteman Air Force Base, Missouri