heavy cruiser Chikuma
E928218
Heavy cruiser Chikuma was an Imperial Japanese Navy Tone-class warship that saw extensive service in World War II, including major Pacific battles such as Midway and Leyte Gulf.
All labels observed (1)
| Label | Occurrences |
|---|---|
| heavy cruiser Chikuma canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11324177 — 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: heavy cruiser Chikuma Context triple: [Japanese Center Force, component, heavy cruiser Chikuma]
-
A.
heavy cruiser Mikuma
The heavy cruiser Mikuma was an Imperial Japanese Navy warship of the Mogami class that saw early World War II service before being sunk during the pivotal Battle of Midway in 1942.
-
B.
heavy cruiser Takao
Heavy cruiser Takao was a major Imperial Japanese Navy warship of the Takao class, noted for its powerful armament and extensive service in the Pacific during World War II.
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C.
heavy cruiser Chōkai
Heavy cruiser Chōkai was a Takao-class Imperial Japanese Navy warship that saw extensive action in the Pacific during World War II, including major engagements such as the Battle of Savo Island and the Battle of Leyte Gulf.
-
D.
heavy cruiser Kumano
Heavy cruiser Kumano was a Mogami-class Imperial Japanese Navy warship that saw extensive action in the Pacific during World War II, including major battles such as Leyte Gulf.
-
E.
heavy cruiser Suzuya
Heavy cruiser Suzuya was an Imperial Japanese Navy Mogami-class warship that saw extensive service in the Pacific during World War II, including major engagements such as the Battle of Leyte Gulf.
- 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: heavy cruiser Chikuma Target entity description: Heavy cruiser Chikuma was an Imperial Japanese Navy Tone-class warship that saw extensive service in World War II, including major Pacific battles such as Midway and Leyte Gulf.
-
A.
heavy cruiser Mikuma
The heavy cruiser Mikuma was an Imperial Japanese Navy warship of the Mogami class that saw early World War II service before being sunk during the pivotal Battle of Midway in 1942.
-
B.
heavy cruiser Takao
Heavy cruiser Takao was a major Imperial Japanese Navy warship of the Takao class, noted for its powerful armament and extensive service in the Pacific during World War II.
-
C.
heavy cruiser Chōkai
Heavy cruiser Chōkai was a Takao-class Imperial Japanese Navy warship that saw extensive action in the Pacific during World War II, including major engagements such as the Battle of Savo Island and the Battle of Leyte Gulf.
-
D.
heavy cruiser Kumano
Heavy cruiser Kumano was a Mogami-class Imperial Japanese Navy warship that saw extensive action in the Pacific during World War II, including major battles such as Leyte Gulf.
-
E.
heavy cruiser Suzuya
Heavy cruiser Suzuya was an Imperial Japanese Navy Mogami-class warship that saw extensive service in the Pacific during World War II, including major engagements such as the Battle of Leyte Gulf.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
Imperial Japanese Navy warship
ⓘ
Tone-class heavy cruiser ⓘ |
| aircraftCarried | reconnaissance seaplanes ⓘ |
| aircraftFacilities |
catapults for floatplanes
ⓘ
hangars for reconnaissance aircraft ⓘ large seaplane handling deck aft ⓘ |
| antiAircraftArmament | 25 mm Type 96 AA guns ⓘ |
| beam | 18.5 metres ⓘ |
| builder |
Mitsubishi Nagasaki Shipyard
ⓘ
linked to:
Mitsubishi Nagasaki shipyard
|
| causeOfLoss | air attack by U.S. carrier aircraft ⓘ |
| class | Tone-class cruiser ⓘ |
| commissioned | 20 May 1939 ⓘ |
| conflict | World War II ⓘ |
| country |
Empire of Japan
ⓘ
linked to:
Japan
|
| crewComplement | approximately 874 officers and men ⓘ |
| dateOfSinking | 25 October 1944 ⓘ |
| designedRole |
reconnaissance cruiser
ⓘ
scout cruiser for carrier task forces ⓘ |
| displacementFullLoad | approximately 15,200 tons ⓘ |
| displacementStandard | approximately 11,200 tons ⓘ |
| draft | 6.5 metres ⓘ |
| fate | scuttled after heavy damage ⓘ |
| fleetAssignment |
First Air Fleet
ⓘ
Mobile Fleet ⓘ |
| laidDown | 1 May 1935 ⓘ |
| launched | 19 March 1938 ⓘ |
| length | 201.7 metres ⓘ |
| locationOfSinking | off Samar, Philippines ⓘ |
| maximumSpeed | 35 knots ⓘ |
| namedAfter | Chikuma River ⓘ |
| operator | Imperial Japanese Navy ⓘ |
| participatedIn |
Attack on Pearl Harbor
ⓘ
linked to:
attack on Pearl Harbor
Battle of Leyte Gulf ⓘ Battle of Midway ⓘ Battle of Santa Cruz Islands ⓘ
linked to:
Battle of the Santa Cruz Islands
Battle of the Eastern Solomons ⓘ Battle of the Philippine Sea ⓘ Battle off Samar ⓘ Indian Ocean Raid ⓘ
linked to:
Indian Ocean raid
|
| primaryArmament | 8 × 203 mm guns in four twin turrets ⓘ |
| propulsion |
geared turbines
ⓘ
oil-fired boilers ⓘ steam turbines ⓘ |
| range | 8,000 nautical miles at 18 knots ⓘ |
| roleAtMidway | launched reconnaissance seaplanes ⓘ |
| secondaryArmament | 127 mm dual-purpose guns ⓘ |
| serviceEntry | 1939 ⓘ |
| shaftCount | 4 ⓘ |
| shipType | heavy cruiser ⓘ |
| sisterShip | Japanese cruiser Tone ⓘ |
| sunkIn | Battle off Samar ⓘ |
| theatre | Pacific War ⓘ |
| torpedoArmament | 610 mm Type 93 torpedo tubes ⓘ |
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: heavy cruiser Chikuma Description of subject: Heavy cruiser Chikuma was an Imperial Japanese Navy Tone-class warship that saw extensive service in World War II, including major Pacific battles such as Midway and Leyte Gulf.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.