USS Iowa
E451641
USS Iowa was a late 19th-century United States Navy battleship (BB-4) that served prominently in the Spanish–American War and became one of the Navy’s first modern steel warships.
All labels observed (1)
| Label | Occurrences |
|---|---|
| USS Iowa canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4526604 — 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: USS Iowa Context triple: [Battle of Santiago de Cuba, involvedShip, USS Iowa]
-
A.
USS Iowa
USS Iowa was the lead ship of the Iowa-class fast battleships of the United States Navy, renowned for its World War II service and later Cold War deployments.
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B.
USS Missouri
USS Missouri is a United States Navy Iowa-class battleship best known as the site of Japan’s formal surrender in World War II, marking the end of the conflict.
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C.
USS Wisconsin
USS Wisconsin is an Iowa-class U.S. Navy battleship that served in World War II and later conflicts, known for its heavy firepower and long operational history.
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D.
USS New Jersey
USS New Jersey is an Iowa-class United States Navy battleship that saw extensive service in World War II, the Korean War, and the Vietnam War, and is now preserved as a museum ship.
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E.
USS South Dakota (BB-57)
USS South Dakota (BB-57) was a World War II-era U.S. Navy fast battleship that served prominently in the Pacific Theater, earning numerous battle stars for its combat service.
- 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: USS Iowa Target entity description: USS Iowa was a late 19th-century United States Navy battleship (BB-4) that served prominently in the Spanish–American War and became one of the Navy’s first modern steel warships.
-
A.
USS Iowa
USS Iowa was the lead ship of the Iowa-class fast battleships of the United States Navy, renowned for its World War II service and later Cold War deployments.
-
B.
USS Missouri
USS Missouri is a United States Navy Iowa-class battleship best known as the site of Japan’s formal surrender in World War II, marking the end of the conflict.
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C.
USS Wisconsin
USS Wisconsin is an Iowa-class U.S. Navy battleship that served in World War II and later conflicts, known for its heavy firepower and long operational history.
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D.
USS New Jersey
USS New Jersey is an Iowa-class United States Navy battleship that saw extensive service in World War II, the Korean War, and the Vietnam War, and is now preserved as a museum ship.
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E.
USS South Dakota (BB-57)
USS South Dakota (BB-57) was a World War II-era U.S. Navy fast battleship that served prominently in the Pacific Theater, earning numerous battle stars for its combat service.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
United States Navy ship
ⓘ
pre-dreadnought battleship ⓘ warship ⓘ |
| armament |
1-pounder guns
ⓘ
20 × 4-inch/40 caliber guns ⓘ 4 × 12-inch/35 caliber guns in 2 twin turrets ⓘ 4 × 14-inch torpedo tubes ⓘ 6-pounder guns ⓘ 8 × 8-inch/35 caliber guns in 4 twin turrets ⓘ |
| armorBelt | 14 inches (356 mm) ⓘ |
| armorTurret | 15 inches (381 mm) ⓘ |
| battle | Battle of Santiago de Cuba NERFINISHED ⓘ |
| beam | 72 ft 3 in (22.02 m) ⓘ |
| commissioned | 1897-06-16 ⓘ |
| conflict | Spanish–American War ⓘ |
| constructionProgram | part of U.S. Navy modernization in the 1890s ⓘ |
| country | United States of America ⓘ |
| crewComplement | approx. 450 officers and enlisted ⓘ |
| decommissioned | 1919-03-31 ⓘ |
| displacement | 11525 long tons (standard) ⓘ |
| draft | 24 ft (7.3 m) ⓘ |
| era | late 19th century ⓘ |
| fate | sunk as target ⓘ |
| hullNumber | BB-4 NERFINISHED ⓘ |
| laidDown | 1893-08-05 ⓘ |
| laidDownAt |
Philadelphia, Pennsylvania
NERFINISHED
ⓘ
William Cramp & Sons Ship and Engine Building Company NERFINISHED ⓘ |
| laterServiceRole |
recruit training and midshipman training
ⓘ
training ship ⓘ |
| launched | 1896-03-28 ⓘ |
| length | 360 ft (110 m) ⓘ |
| material | steel ⓘ |
| modernFeature | one of the U.S. Navy’s first modern steel battleships ⓘ |
| namesake | U.S. state of Iowa NERFINISHED ⓘ |
| notableAction | engaged Spanish fleet off Santiago, Cuba, 1898-07-03 ⓘ |
| operator | United States Navy ⓘ |
| power | 11500 indicated horsepower ⓘ |
| propulsion |
2 screw propellers
ⓘ
2 vertical triple-expansion steam engines ⓘ 8 coal-fired boilers ⓘ |
| range | 5000 nautical miles at 10 knots ⓘ |
| reasonForRenaming | to free the name Iowa for a new battleship (BB-53) ⓘ |
| recommissioned |
1910-05-23
ⓘ
1912-05-02 ⓘ |
| renamed | Coast Battleship No. 4 NERFINISHED ⓘ |
| renamedDate | 1919-03-30 ⓘ |
| roleInSpanishAmericanWar | served as part of the North Atlantic Squadron ⓘ |
| serviceRole | front-line battleship ⓘ |
| shipClass | Iowa-class battleship (1896) NERFINISHED ⓘ |
| shipType | battleship ⓘ |
| sponsor | Mary Lord Drake NERFINISHED ⓘ |
| stricken | 1923-03-27 ⓘ |
| sunkAsTarget | 1923-03-23 ⓘ |
| topSpeed | 17 knots ⓘ |
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: USS Iowa Description of subject: USS Iowa was a late 19th-century United States Navy battleship (BB-4) that served prominently in the Spanish–American War and became one of the Navy’s first modern steel warships.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.