Portland-class cruiser
E1034199
The Portland-class cruiser was a class of U.S. Navy heavy cruisers of the interwar and World War II era, noted for their balanced design and extensive wartime service in the Pacific.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Portland-class cruiser canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13285394 — 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 cruiser Context triple: [Northampton-class cruiser, followedBy, Portland-class cruiser]
-
A.
York-class cruiser
The York-class cruiser was a class of British Royal Navy heavy cruisers built under interwar naval treaties, characterized by relatively lighter armament and armor compared to earlier heavy cruisers to meet treaty limitations.
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B.
Brooklyn-class cruiser
The Brooklyn-class cruiser was a class of United States Navy light cruisers built in the 1930s, known for their heavy main battery of fifteen 6-inch guns and extensive World War II service, with some ships later serving in foreign navies.
-
C.
Cleveland-class cruiser
The Cleveland-class cruiser was a World War II–era class of U.S. Navy light cruisers known for their heavy anti-aircraft armament, numerous wartime deployments, and later conversions into guided missile cruisers.
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D.
Ticonderoga-class cruiser
The Ticonderoga-class cruiser is a class of U.S. Navy guided-missile warships equipped with the Aegis combat system, designed for multi-role air, surface, and missile defense operations.
-
E.
Olympia-class cruiser
The Olympia-class cruiser was a late 19th-century United States Navy protected cruiser class best known for its lead ship, USS Olympia, flagship of Commodore Dewey at the Battle of Manila Bay.
- 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 cruiser Target entity description: The Portland-class cruiser was a class of U.S. Navy heavy cruisers of the interwar and World War II era, noted for their balanced design and extensive wartime service in the Pacific.
-
A.
York-class cruiser
The York-class cruiser was a class of British Royal Navy heavy cruisers built under interwar naval treaties, characterized by relatively lighter armament and armor compared to earlier heavy cruisers to meet treaty limitations.
-
B.
Brooklyn-class cruiser
The Brooklyn-class cruiser was a class of United States Navy light cruisers built in the 1930s, known for their heavy main battery of fifteen 6-inch guns and extensive World War II service, with some ships later serving in foreign navies.
-
C.
Cleveland-class cruiser
The Cleveland-class cruiser was a World War II–era class of U.S. Navy light cruisers known for their heavy anti-aircraft armament, numerous wartime deployments, and later conversions into guided missile cruisers.
-
D.
Ticonderoga-class cruiser
The Ticonderoga-class cruiser is a class of U.S. Navy guided-missile warships equipped with the Aegis combat system, designed for multi-role air, surface, and missile defense operations.
-
E.
Olympia-class cruiser
The Olympia-class cruiser was a late 19th-century United States Navy protected cruiser class best known for its lead ship, USS Olympia, flagship of Commodore Dewey at the Battle of Manila Bay.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
United States Navy ship class
ⓘ
heavy cruiser class ⓘ warship class ⓘ |
| aircraftCarried | 4 floatplanes (designed) ⓘ |
| aircraftFacilities | 2 catapults ⓘ |
| antiAircraftArmament |
0.50 in machine guns
ⓘ
20 mm Oerlikon cannons (WWII refit) ⓘ 40 mm Bofors guns (WWII refit) ⓘ |
| armorBeltThickness | 5 in ⓘ |
| armorConningTowerThickness | 5 in ⓘ |
| armorDeckThickness | 2.5 in ⓘ |
| armorTurretFaceThickness | 8.5 in ⓘ |
| beam | 66 ft 1 in ⓘ |
| classificationSymbol | CA ⓘ |
| conflict | World War II ⓘ |
| constructionPeriod | early 1930s ⓘ |
| countryOfOrigin | United States of America ⓘ |
| designedFor | Pacific operations ⓘ |
| designGoal | balanced protection, armament, and speed ⓘ |
| designImprovementOver | Northampton-class cruiser NERFINISHED ⓘ |
| draft | 21 ft ⓘ |
| era | interwar period ⓘ |
| followedBy | New Orleans-class cruiser NERFINISHED ⓘ |
| fullLoadDisplacement | 12000 long tons ⓘ |
| hasPart |
USS Indianapolis (CA-35)
NERFINISHED
ⓘ
USS Portland (CA-33) NERFINISHED ⓘ |
| hullMaterial | steel ⓘ |
| lengthOverall | 610 ft 3 in ⓘ |
| maximumSpeed | 32.7 knots ⓘ |
| navalTreaty |
London Naval Treaty
NERFINISHED
ⓘ
Washington Naval Treaty NERFINISHED ⓘ |
| notableFor | extensive World War II service ⓘ |
| numberOfScrews | 4 ⓘ |
| numberOfShipsBuilt | 2 ⓘ |
| operator | United States Navy ⓘ |
| powerOutput | 107000 shp ⓘ |
| precededBy | Northampton-class cruiser NERFINISHED ⓘ |
| primaryArmament | 9 × 8 in/55 caliber guns ⓘ |
| primaryArmamentLayout | 3 triple turrets ⓘ |
| propulsion |
geared steam turbines
ⓘ
oil-fired boilers ⓘ steam turbines ⓘ |
| range | 10000 nmi at 15 knots ⓘ |
| reclassifiedFrom | CL (light cruiser) design lineage ⓘ |
| secondaryArmament | 8 × 5 in/25 caliber guns ⓘ |
| serviceTheater | Pacific Ocean NERFINISHED ⓘ |
| shipType | heavy cruiser ⓘ |
| standardDisplacement | 10000 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 cruiser Description of subject: The Portland-class cruiser was a class of U.S. Navy heavy cruisers of the interwar and World War II era, noted for their balanced design and extensive wartime service in the Pacific.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.