Portland class
E278435
The Portland class was a group of U.S. Navy heavy cruisers built in the early 1930s that saw extensive service during World War II.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Portland class canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T2565251 — 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: Portland class Context triple: [USS Indianapolis (CA-35), shipClass, Portland class]
-
A.
Wyoming class
The Wyoming class was a pair of early 20th-century U.S. Navy dreadnought battleships that served through both World Wars before being retired mid-century.
-
B.
Florida-class battleship
The Florida-class battleship was an early 20th-century class of U.S. Navy dreadnoughts that marked a step forward in American capital ship design before World War I.
-
C.
Lexington class
The Lexington class was a pair of early U.S. Navy aircraft carriers, originally laid down as battlecruisers, that played a key role in developing American carrier aviation between the World Wars and during the early years of World War II.
-
D.
New York-class battleship
The New York-class battleship was a class of early 20th-century U.S. Navy dreadnoughts that introduced 14-inch guns and served prominently through both World Wars.
-
E.
New Mexico-class battleship
The New Mexico-class battleship was a group of U.S. Navy dreadnoughts built during World War I that introduced improved firepower, armor, and propulsion over earlier classes and served through World War II.
- 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: Portland class Target entity description: The Portland class was a group of U.S. Navy heavy cruisers built in the early 1930s that saw extensive service during World War II.
-
A.
Wyoming class
The Wyoming class was a pair of early 20th-century U.S. Navy dreadnought battleships that served through both World Wars before being retired mid-century.
-
B.
Florida-class battleship
The Florida-class battleship was an early 20th-century class of U.S. Navy dreadnoughts that marked a step forward in American capital ship design before World War I.
-
C.
Lexington class
The Lexington class was a pair of early U.S. Navy aircraft carriers, originally laid down as battlecruisers, that played a key role in developing American carrier aviation between the World Wars and during the early years of World War II.
-
D.
New York-class battleship
The New York-class battleship was a class of early 20th-century U.S. Navy dreadnoughts that introduced 14-inch guns and served prominently through both World Wars.
-
E.
New Mexico-class battleship
The New Mexico-class battleship was a group of U.S. Navy dreadnoughts built during World War I that introduced improved firepower, armor, and propulsion over earlier classes and served through World War II.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States Navy cruiser class
ⓘ
class of heavy cruisers ⓘ |
| aircraftCarried | floatplanes ⓘ |
| aircraftFacilities | catapults ⓘ |
| armament |
anti-aircraft guns
ⓘ
torpedo tubes (early configuration) ⓘ |
| armorBeltThickness | 5 inches ⓘ |
| armorConningTowerThickness | 5 inches ⓘ |
| armorDeckThickness | 2.5 inches ⓘ |
| armorTurretFaceThickness | 8 inches ⓘ |
| beam | 65 feet 7 inches ⓘ |
| category |
Heavy cruiser classes
ⓘ
World War II cruisers of the United States ⓘ |
| conflict | World War II ⓘ |
| constructionPeriod | early 1930s ⓘ |
| countryOfOrigin | United States of America ⓘ |
| crewComplement | approximately 1,200 officers and enlisted ⓘ |
| designedAs | heavy cruiser ⓘ |
| designPurpose | treaty cruiser under Washington Naval Treaty limits ⓘ |
| draft | 19 feet 4 inches ⓘ |
| fateOfClass | all ships eventually decommissioned ⓘ |
| followedBy |
New Orleans-class cruiser
ⓘ
linked to:
New Orleans class
|
| fullLoadDisplacement | 12755 long tons ⓘ |
| hullClassificationSymbol | CA ⓘ |
| lengthOverall | 610 feet 3 inches ⓘ |
| mainBattery | 9 × 8-inch/55 caliber guns ⓘ |
| mainBatteryConfiguration | 3 triple turrets ⓘ |
| maximumSpeed | 32.7 knots ⓘ |
| navalTreatyContext |
London Naval Treaty
ⓘ
Washington Naval Treaty ⓘ
linked to:
Five-Power Treaty
|
| notableShip |
USS Indianapolis (CA-35)
ⓘ
USS Portland (CA-33) ⓘ |
| numberOfScrews | 4 ⓘ |
| numberOfShipsCompleted | 2 ⓘ |
| operator | United States Navy ⓘ |
| powerOutput | 107000 shaft horsepower ⓘ |
| precededBy | Northampton-class cruiser ⓘ |
| propulsion |
geared steam turbines
ⓘ
oil-fired boilers ⓘ steam turbines ⓘ |
| range | 10000 nautical miles at 15 knots ⓘ |
| sawServiceIn |
Atlantic Theater of World War II
ⓘ
linked to:
Battle of the Atlantic
Pacific Theater of World War II ⓘ
linked to:
Pacific War
|
| secondaryBattery | 8 × 5-inch/25 caliber guns ⓘ |
| serviceEntry | 1933 ⓘ |
| ship |
USS Indianapolis (CA-35)
ⓘ
USS Portland (CA-33) ⓘ |
| standardDisplacement | 10258 long tons ⓘ |
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: Portland class Description of subject: The Portland class was a group of U.S. Navy heavy cruisers built in the early 1930s that saw extensive service during World War II.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.