Ryūjō
E445663
Ryūjō was a light aircraft carrier of the Imperial Japanese Navy that served in the early years of World War II before being sunk during the Battle of the Eastern Solomons in 1942.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ryūjō canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2803719 — 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: Ryūjō Context triple: [Japanese aircraft carrier Ryūjō, name, Ryūjō]
-
A.
Marunouchi
Marunouchi is a central Tokyo business district known for its concentration of corporate headquarters, upscale offices, and proximity to Tokyo Station and the Imperial Palace.
-
B.
Fujinomiya
Fujinomiya is a city in Shizuoka Prefecture, Japan, known as a major gateway to Mount Fuji and for its scenic views of the iconic volcano.
-
C.
Higashikurume
Higashikurume is a suburban city in western Tokyo, Japan, known for its residential neighborhoods and role as a commuter area for central Tokyo.
-
D.
Akiruno
Akiruno is a city in western Tokyo, Japan, known for its natural scenery, including rivers, forests, and hiking areas.
-
E.
Akishino
Akishino is the imperial family name of a branch of Japan’s monarchy, borne by members such as Prince Hisahito and his parents, Crown Prince Fumihito and Crown Princess Kiko.
- 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: Ryūjō Target entity description: Ryūjō was a light aircraft carrier of the Imperial Japanese Navy that served in the early years of World War II before being sunk during the Battle of the Eastern Solomons in 1942.
-
A.
Marunouchi
Marunouchi is a central Tokyo business district known for its concentration of corporate headquarters, upscale offices, and proximity to Tokyo Station and the Imperial Palace.
-
B.
Fujinomiya
Fujinomiya is a city in Shizuoka Prefecture, Japan, known as a major gateway to Mount Fuji and for its scenic views of the iconic volcano.
-
C.
Higashikurume
Higashikurume is a suburban city in western Tokyo, Japan, known for its residential neighborhoods and role as a commuter area for central Tokyo.
-
D.
Akiruno
Akiruno is a city in western Tokyo, Japan, known for its natural scenery, including rivers, forests, and hiking areas.
-
E.
Akishino
Akishino is the imperial family name of a branch of Japan’s monarchy, borne by members such as Prince Hisahito and his parents, Crown Prince Fumihito and Crown Princess Kiko.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Imperial Japanese Navy ship
ⓘ
light aircraft carrier ⓘ warship ⓘ |
| aircraftOperated |
Aichi D3A dive bombers
NERFINISHED
ⓘ
Mitsubishi A5M fighters (early war) NERFINISHED ⓘ Mitsubishi A6M Zero fighters NERFINISHED ⓘ Nakajima B5N torpedo bombers NERFINISHED ⓘ |
| airGroupSize | approximately 37 aircraft (varied over time) ⓘ |
| armament |
127 mm dual-purpose guns
ⓘ
25 mm anti-aircraft guns ⓘ |
| belligerentSide |
Axis Powers
NERFINISHED
ⓘ
Japan NERFINISHED ⓘ |
| builder | Mitsubishi Heavy Industries NERFINISHED ⓘ |
| builtAt | Mitsubishi Nagasaki Shipyard NERFINISHED ⓘ |
| causeOfSinking | air attack by United States Navy carrier aircraft ⓘ |
| commissioned | 1933 ⓘ |
| conflictParticipatedIn |
Second Sino-Japanese War
NERFINISHED
ⓘ
World War II ⓘ |
| country |
Japan
ⓘ
surface form:
Empire of Japan
|
| crewComplement | approximately 900–1,000 officers and men ⓘ |
| dateSunk | 24 August 1942 ⓘ |
| designedToComplyWith | Washington Naval Treaty displacement limits NERFINISHED ⓘ |
| displacement | approximately 10,600 tons (standard) ⓘ |
| fate | sunk in combat in 1942 ⓘ |
| hullNumber | not formally numbered (pre-war IJN practice) ⓘ |
| isLeadShipOfClass | Ryūjō-class aircraft carrier NERFINISHED ⓘ |
| laidDown | 1929 ⓘ |
| launched | 1931 ⓘ |
| locationOfSinking | north of Guadalcanal ⓘ |
| maximumSpeed | approximately 29 knots ⓘ |
| modifiedAfter | stability problems discovered in early service ⓘ |
| navalFleet | Japanese Combined Fleet NERFINISHED ⓘ |
| notableEngagement | Battle of the Eastern Solomons NERFINISHED ⓘ |
| notableFeature |
relatively small displacement for an aircraft carrier
ⓘ
single continuous flight deck ⓘ |
| operationParticipatedIn |
Aleutian Islands campaign
NERFINISHED
ⓘ
Indian Ocean raid (1942) NERFINISHED ⓘ Invasion of the Dutch East Indies NERFINISHED ⓘ Invasion of the Philippines (1941) NERFINISHED ⓘ |
| operator | Imperial Japanese Navy ⓘ |
| propulsion |
oil-fired boilers
ⓘ
steam turbines ⓘ |
| serviceEntryPeriod | interwar period ⓘ |
| shipClass | Ryūjō-class aircraft carrier NERFINISHED ⓘ |
| shipType | light aircraft carrier ⓘ |
| status | wrecked ⓘ |
| sunkIn | Battle of the Eastern Solomons NERFINISHED ⓘ |
| theaterOfOperations |
Indian Ocean
NERFINISHED
ⓘ
Pacific Ocean NERFINISHED ⓘ |
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: Ryūjō Description of subject: Ryūjō was a light aircraft carrier of the Imperial Japanese Navy that served in the early years of World War II before being sunk during the Battle of the Eastern Solomons in 1942.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.