Nakajima B4N
E104753
The Nakajima B4N was an early Japanese carrier-based torpedo bomber developed in the 1930s for the Imperial Japanese Navy.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Nakajima B4N canonical | 1 |
| Yokosuka B4Y | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T810545 — 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: Nakajima B4N Context triple: [Nakajima B5N, designedAsReplacementFor, Nakajima B4N]
-
A.
Yokosuka D4Y
The Yokosuka D4Y was a fast, carrier-based Japanese dive bomber used by the Imperial Japanese Navy during World War II.
-
B.
Nakajima B5N torpedo bombers
Nakajima B5N torpedo bombers were Japanese carrier-based attack aircraft used extensively by the Imperial Japanese Navy during World War II, including in the attack on Pearl Harbor.
-
C.
Aichi D3A dive bombers
The Aichi D3A was a Japanese carrier-based dive bomber used extensively by the Imperial Japanese Navy during World War II, notably in the attack on Pearl Harbor.
-
D.
Nakajima Ki-84
The Nakajima Ki-84 was a late-World War II Japanese single-seat fighter aircraft renowned for its high speed, powerful armament, and effectiveness against Allied fighters and bombers.
-
E.
Kawasaki Ki-61
The Kawasaki Ki-61 was a World War II Japanese fighter aircraft notable for its inline liquid-cooled engine and performance that drew comparisons to contemporary European fighters.
- 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: Nakajima B4N Target entity description: The Nakajima B4N was an early Japanese carrier-based torpedo bomber developed in the 1930s for the Imperial Japanese Navy.
-
A.
Yokosuka D4Y
The Yokosuka D4Y was a fast, carrier-based Japanese dive bomber used by the Imperial Japanese Navy during World War II.
-
B.
Nakajima B5N torpedo bombers
Nakajima B5N torpedo bombers were Japanese carrier-based attack aircraft used extensively by the Imperial Japanese Navy during World War II, including in the attack on Pearl Harbor.
-
C.
Aichi D3A dive bombers
The Aichi D3A was a Japanese carrier-based dive bomber used extensively by the Imperial Japanese Navy during World War II, notably in the attack on Pearl Harbor.
-
D.
Nakajima Ki-84
The Nakajima Ki-84 was a late-World War II Japanese single-seat fighter aircraft renowned for its high speed, powerful armament, and effectiveness against Allied fighters and bombers.
-
E.
Kawasaki Ki-61
The Kawasaki Ki-61 was a World War II Japanese fighter aircraft notable for its inline liquid-cooled engine and performance that drew comparisons to contemporary European fighters.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
carrier-based aircraft
ⓘ
prototype aircraft ⓘ torpedo bomber ⓘ |
| aircraftCategory |
military aircraft
ⓘ
naval aircraft ⓘ |
| aircraftType | fixed-wing aircraft ⓘ |
| armamentType | aerial torpedo ⓘ |
| basedOn | Imperial Japanese Navy carrier-borne bomber requirement ⓘ |
| combatType | attack aircraft ⓘ |
| countryOfOrigin | Japan ⓘ |
| designedFor | ship attack missions ⓘ |
| designedIn | Japan ⓘ |
| developedFor |
Imperial Japanese Navy carrier air groups
ⓘ
linked to:
Imperial Japanese Navy Air Service
|
| developmentStartPeriod | early 1930s ⓘ |
| era | interwar period ⓘ |
| historicalContext | pre–World War II Japanese naval aviation ⓘ |
| launchPlatform | aircraft carrier ⓘ |
| manufacturer | Nakajima Aircraft Company ⓘ |
| militaryBranch | Imperial Japanese Navy Air Service ⓘ |
| nationality | Japanese ⓘ |
| operatedBy | Imperial Japanese Navy ⓘ |
| primaryRole | torpedo bombing ⓘ |
| propulsionType | piston-engined ⓘ |
| serviceEntryPeriod | 1930s ⓘ |
| usedIn | naval aviation ⓘ |
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: Nakajima B4N Description of subject: The Nakajima B4N was an early Japanese carrier-based torpedo bomber developed in the 1930s for the Imperial Japanese Navy.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Nakajima B5N torpedo bombers
linked to: Nakajima B4N