BB-61
E377017
Iowa-class battleship
United States Navy warship
battleship class
fast battleship
hull classification symbol
BB-61 is the hull classification symbol of USS Iowa, the lead ship of the Iowa-class fast battleships that served prominently in the U.S. Navy during World War II and the Cold War.
All labels observed (1)
| Label | Occurrences |
|---|---|
| BB-61 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3587782 — 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: BB-61 Context triple: [USS Iowa, pennantNumber, BB-61]
-
A.
BB-63
BB-63 is the hull number of USS Missouri, a famous Iowa-class battleship best known as the site of Japan’s formal surrender in World War II.
-
B.
BB-36
BB-36 is the hull classification symbol for USS Nevada, a U.S. Navy battleship notable for its service during both World Wars and survival of the Pearl Harbor attack.
-
C.
BB-38
BB-38 is the hull number of USS Pennsylvania, a Pennsylvania-class battleship of the United States Navy that served prominently during both World Wars.
-
D.
BB-46
BB-46 is the hull classification symbol for USS Maryland, a Colorado-class battleship of the United States Navy that served prominently during World War II.
-
E.
BB-31
BB-31 was the original battleship designation for USS Utah, a Florida-class dreadnought that later served as a target and training ship for the U.S. Navy.
- 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: BB-61 Target entity description: BB-61 is the hull classification symbol of USS Iowa, the lead ship of the Iowa-class fast battleships that served prominently in the U.S. Navy during World War II and the Cold War.
-
A.
BB-63
BB-63 is the hull number of USS Missouri, a famous Iowa-class battleship best known as the site of Japan’s formal surrender in World War II.
-
B.
BB-36
BB-36 is the hull classification symbol for USS Nevada, a U.S. Navy battleship notable for its service during both World Wars and survival of the Pearl Harbor attack.
-
C.
BB-38
BB-38 is the hull number of USS Pennsylvania, a Pennsylvania-class battleship of the United States Navy that served prominently during both World Wars.
-
D.
BB-46
BB-46 is the hull classification symbol for USS Maryland, a Colorado-class battleship of the United States Navy that served prominently during World War II.
-
E.
BB-31
BB-31 was the original battleship designation for USS Utah, a Florida-class dreadnought that later served as a target and training ship for the U.S. Navy.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
Iowa-class battleship
ⓘ
United States Navy warship ⓘ battleship class ⓘ fast battleship ⓘ hull classification symbol ⓘ |
| armament |
16-inch/50 caliber Mark 7 naval guns
ⓘ
5-inch/38 caliber dual-purpose guns ⓘ |
| conflict |
Cold War
ⓘ
Korean War ⓘ World War II ⓘ |
| country | United States of America ⓘ |
| designedFor |
escort of fast carrier task forces
ⓘ
high speed ⓘ long-range operations ⓘ |
| era |
Cold War
ⓘ
surface form:
Cold War era
World War II era ⓘ |
| leadShip | USS Iowa ⓘ |
| namedAfter |
Iowa
ⓘ
surface form:
U.S. state of Iowa
|
| navalArchitectureFeature |
armored belt
ⓘ
armored deck ⓘ triple-gun main turrets ⓘ |
| notableFor | serving as lead ship of the last U.S. battleship class ⓘ |
| operator | United States Navy ⓘ |
| pennantNumber | BB-61 self-linksurface differs ⓘ |
| propulsion |
oil-fired boilers
ⓘ
steam turbines ⓘ |
| refersTo | USS Iowa ⓘ |
| role |
naval gunfire support ship
ⓘ
surface combatant ⓘ |
| serviceEntryEra |
World War II
ⓘ
surface form:
World War II era
|
| shipClass |
Iowa-class battleship
ⓘ
surface form:
Iowa class
|
| shipType |
battleship
ⓘ
fast battleship class ⓘ |
| speedClass | fast battleship ⓘ |
| usedBy |
United States Navy in World War II
ⓘ
United States Navy in the Cold War ⓘ |
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: BB-61 Description of subject: BB-61 is the hull classification symbol of USS Iowa, the lead ship of the Iowa-class fast battleships that served prominently in the U.S. Navy during World War II and the Cold War.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
USS Iowa