Japanese battleship Tosa
E476274
Japanese battleship Tosa was a planned but never completed Imperial Japanese Navy battleship of the Tosa class, intended to be a powerful capital ship in the early 1920s before being cancelled under naval disarmament treaties.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Japanese battleship Tosa canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4859741 — 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: Japanese battleship Tosa Context triple: [Tosa-class battleship, hasPlannedShip, Japanese battleship Tosa]
-
A.
Japanese battleship Hiei
Japanese battleship Hiei was a Kongō-class fast battleship of the Imperial Japanese Navy that saw extensive action in the Pacific during World War II before being sunk in 1942.
-
B.
Japanese battleship Shikishima
Japanese battleship Shikishima was a pre-dreadnought warship of the Imperial Japanese Navy that played a significant role in the Russo-Japanese War, including major fleet engagements.
-
C.
Japanese battleship Mikasa
The Japanese battleship Mikasa was a pre-dreadnought battleship that served as Admiral Tōgō Heihachirō’s flagship and played a pivotal role in Japan’s naval victories during the Russo-Japanese War.
-
D.
Japanese battleship Mutsu
Japanese battleship Mutsu was a Nagato-class dreadnought of the Imperial Japanese Navy, notable for its powerful 16-inch guns and its accidental magazine explosion and sinking in 1943.
-
E.
Japanese battleship Nagato
The Japanese battleship Nagato was a World War II-era capital ship of the Imperial Japanese Navy, famed as Admiral Isoroku Yamamoto’s flagship during the attack on Pearl Harbor and later used as a target in postwar nuclear tests.
- 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: Japanese battleship Tosa Target entity description: Japanese battleship Tosa was a planned but never completed Imperial Japanese Navy battleship of the Tosa class, intended to be a powerful capital ship in the early 1920s before being cancelled under naval disarmament treaties.
-
A.
Japanese battleship Hiei
Japanese battleship Hiei was a Kongō-class fast battleship of the Imperial Japanese Navy that saw extensive action in the Pacific during World War II before being sunk in 1942.
-
B.
Japanese battleship Shikishima
Japanese battleship Shikishima was a pre-dreadnought warship of the Imperial Japanese Navy that played a significant role in the Russo-Japanese War, including major fleet engagements.
-
C.
Japanese battleship Mikasa
The Japanese battleship Mikasa was a pre-dreadnought battleship that served as Admiral Tōgō Heihachirō’s flagship and played a pivotal role in Japan’s naval victories during the Russo-Japanese War.
-
D.
Japanese battleship Mutsu
Japanese battleship Mutsu was a Nagato-class dreadnought of the Imperial Japanese Navy, notable for its powerful 16-inch guns and its accidental magazine explosion and sinking in 1943.
-
E.
Japanese battleship Nagato
The Japanese battleship Nagato was a World War II-era capital ship of the Imperial Japanese Navy, famed as Admiral Isoroku Yamamoto’s flagship during the attack on Pearl Harbor and later used as a target in postwar nuclear tests.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
battleship
ⓘ
capital ship ⓘ planned warship ⓘ |
| armamentCaliber | 41 cm/45 Type 3 naval gun ⓘ |
| beam | approximately 30.8 meters ⓘ |
| builder | Mitsubishi Nagasaki Shipyard NERFINISHED ⓘ |
| builtAt | Nagasaki NERFINISHED ⓘ |
| cancelledUnder | Washington Naval Treaty NERFINISHED ⓘ |
| constructionStatusAtCancellation | nearly complete hull ⓘ |
| country |
Japan
ⓘ
surface form:
Empire of Japan
|
| designedAntiAircraftArmament | 4 × 8 cm (3 in) AA guns ⓘ |
| designedArmorBeltThickness | up to about 280 mm ⓘ |
| designedBy | Imperial Japanese Navy Technical Department NERFINISHED ⓘ |
| designedCrew | about 1,400 officers and men ⓘ |
| designedDeckArmorThickness | up to about 102 mm ⓘ |
| designedMainArmament | 10 × 41 cm (16.1 in) guns ⓘ |
| designedMainArmamentLayout | 5 twin turrets ⓘ |
| designedSecondaryArmament | 20 × 14 cm (5.5 in) guns ⓘ |
| designedSpeed | 26.5 knots ⓘ |
| designedTorpedoArmament | 8 × 61 cm torpedo tubes ⓘ |
| designPeriod | early 1920s ⓘ |
| displacement |
about 39,000 tons standard
ⓘ
about 44,000 tons full load ⓘ |
| era | interwar period ⓘ |
| fate | used as target ship ⓘ |
| followedByClass | Kii-class battleship (planned) NERFINISHED ⓘ |
| hullNumber | No. 2 Tosa-class unit ⓘ |
| influenced |
design of the Nagato-class refits
ⓘ
subsequent Japanese battleship armor schemes ⓘ |
| intendedRole |
fleet flagship candidate
ⓘ
line-of-battle ship ⓘ |
| laidDown | 16 February 1920 ⓘ |
| launched | 18 December 1921 ⓘ |
| length | approximately 234 meters ⓘ |
| namesake | Tosa Province NERFINISHED ⓘ |
| operator | Imperial Japanese Navy ⓘ |
| partOfClass | Tosa-class battleship NERFINISHED ⓘ |
| precededByClass | Nagato-class battleship NERFINISHED ⓘ |
| propulsion |
oil-fired boilers
ⓘ
steam turbines ⓘ |
| purposeOfTargetTrials |
testing battleship armor
ⓘ
testing shell performance ⓘ testing underwater protection ⓘ |
| scrapped | after 1925 target trials ⓘ |
| status | never completed ⓘ |
| sunkAsTarget | 9 February 1925 ⓘ |
| sunkLocation | off Japan ⓘ |
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: Japanese battleship Tosa Description of subject: Japanese battleship Tosa was a planned but never completed Imperial Japanese Navy battleship of the Tosa class, intended to be a powerful capital ship in the early 1920s before being cancelled under naval disarmament treaties.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.