1st Air Fleet
E489683
The 1st Air Fleet was the Imperial Japanese Navy’s main carrier striking force in World War II, best known for executing the attack on Pearl Harbor and leading early Pacific War offensives.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 1st Air Fleet canonical | 1 |
| 1st Air Fleet (hybrid carrier force, late war) | 1 |
| 第一航空艦隊 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5058422 — 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: 1st Air Fleet Context triple: [Combined Fleet of the Imperial Japanese Navy, subordinateUnit, 1st Air Fleet]
-
A.
Eleventh Air Fleet
The Eleventh Air Fleet was a major Imperial Japanese Navy aviation formation in World War II, responsible for coordinating and conducting large-scale air operations in the Pacific theater.
-
B.
Thirteenth Air Fleet
The Thirteenth Air Fleet was a World War II-era aviation formation of the Imperial Japanese Navy, responsible for coordinating and conducting air operations in its assigned theater of the Pacific War.
-
C.
Imperial Japanese Navy Air Service
The Imperial Japanese Navy Air Service was the naval aviation branch of Japan’s military before and during World War II, renowned for its carrier-based aircraft and early-war dominance in the Pacific.
-
D.
Far Eastern Air Forces
Far Eastern Air Forces was a major U.S. Army Air Forces command responsible for air operations in the Southwest Pacific during World War II.
-
E.
Imperial Japanese Army Air Service
The Imperial Japanese Army Air Service was the aviation branch of Japan's army responsible for military air operations before and during World War II.
- 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: 1st Air Fleet Target entity description: The 1st Air Fleet was the Imperial Japanese Navy’s main carrier striking force in World War II, best known for executing the attack on Pearl Harbor and leading early Pacific War offensives.
-
A.
Eleventh Air Fleet
The Eleventh Air Fleet was a major Imperial Japanese Navy aviation formation in World War II, responsible for coordinating and conducting large-scale air operations in the Pacific theater.
-
B.
Thirteenth Air Fleet
The Thirteenth Air Fleet was a World War II-era aviation formation of the Imperial Japanese Navy, responsible for coordinating and conducting air operations in its assigned theater of the Pacific War.
-
C.
Imperial Japanese Navy Air Service
The Imperial Japanese Navy Air Service was the naval aviation branch of Japan’s military before and during World War II, renowned for its carrier-based aircraft and early-war dominance in the Pacific.
-
D.
Far Eastern Air Forces
Far Eastern Air Forces was a major U.S. Army Air Forces command responsible for air operations in the Southwest Pacific during World War II.
-
E.
Imperial Japanese Army Air Service
The Imperial Japanese Army Air Service was the aviation branch of Japan's army responsible for military air operations before and during World War II.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Imperial Japanese Navy formation
ⓘ
naval aviation unit ⓘ |
| activeDuring | World War II ⓘ |
| alsoKnownAs | Kido Butai ⓘ |
| branch | naval aviation ⓘ |
| commander |
Chuichi Nagumo
ⓘ
Jisaburo Ozawa ⓘ
linked to:
Jisaburō Ozawa
|
| component |
Akagi
ⓘ
Hiryu ⓘ Kaga ⓘ Shokaku ⓘ Soryu ⓘ
linked to:
Sōryū
Zuikaku ⓘ carrier air groups ⓘ escort warships ⓘ |
| conflict | Pacific War ⓘ |
| country |
Empire of Japan
ⓘ
linked to:
Japan
|
| disbandedIn | 1944 ⓘ |
| doctrine | concentrated carrier air power ⓘ |
| era | Imperial Japanese Navy era ⓘ |
| flagship |
Akagi
ⓘ
Shokaku ⓘ |
| formedIn | 1941 ⓘ |
| languageOfName | Japanese ⓘ |
| notableEvent |
launched first wave of aircraft against Pearl Harbor
ⓘ
suffered heavy losses at Battle of Midway ⓘ |
| notableFor | attack on Pearl Harbor ⓘ |
| notableImpact |
demonstrated effectiveness of carrier-centric naval warfare
ⓘ
enabled rapid early Japanese advances in the Pacific ⓘ |
| operation |
Attack on Pearl Harbor
ⓘ
linked to:
attack on Pearl Harbor
Battle of Midway ⓘ Battle of the Coral Sea ⓘ
linked to:
Battle of Coral Sea
Indian Ocean Raid ⓘ
linked to:
Indian Ocean raid
early Pacific War offensives ⓘ |
| originalName |
Dai-ichi Kōkū Kantai
ⓘ
linked to:
Kido Butai
|
| partOf | Imperial Japanese Navy ⓘ |
| role | main carrier striking force ⓘ |
| status | disbanded ⓘ |
| strategicPurpose | offensive carrier strike operations ⓘ |
| subordinateTo | Combined Fleet ⓘ |
| theaterOfOperations |
Central Pacific
ⓘ
Indian Ocean ⓘ South Pacific ⓘ |
| type | carrier task force ⓘ |
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: 1st Air Fleet Description of subject: The 1st Air Fleet was the Imperial Japanese Navy’s main carrier striking force in World War II, best known for executing the attack on Pearl Harbor and leading early Pacific War offensives.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Ise (hybrid battleship-carrier)
linked to: 1st Air Fleet