CV-2
E899114
CV-2 was the hull classification symbol for USS Lexington, a pioneering U.S. Navy aircraft carrier that played a major role in early World War II naval aviation before being sunk in the Battle of the Coral Sea.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CV-2 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T11005600 — 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: CV-2 Context triple: [USS Lexington (CV-2), hullNumber, CV-2]
-
A.
CV-2
CV-2 refers to the Imperial Japanese Navy aircraft carrier Hiryū, a key fleet carrier that participated in major early Pacific War battles before being sunk at Midway in 1942.
-
B.
John Cunningham virus
John Cunningham virus is a human polyomavirus that typically remains latent but can cause the severe demyelinating brain disease progressive multifocal leukoencephalopathy in immunocompromised individuals.
-
C.
CVM
CVM is the U.S. Food and Drug Administration’s Center for Veterinary Medicine, which regulates the safety and effectiveness of animal drugs and medicated feeds.
-
D.
Vircava
Vircava is a river in Latvia that serves as one of the tributaries feeding into the larger Lielupe River system.
-
E.
CVA
CVA is the commonly used abbreviation for the World Trade Organization’s Customs Valuation Agreement, which sets international rules for determining the customs value of imported goods.
- 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: CV-2 Target entity description: CV-2 was the hull classification symbol for USS Lexington, a pioneering U.S. Navy aircraft carrier that played a major role in early World War II naval aviation before being sunk in the Battle of the Coral Sea.
-
A.
CV-2
CV-2 refers to the Imperial Japanese Navy aircraft carrier Hiryū, a key fleet carrier that participated in major early Pacific War battles before being sunk at Midway in 1942.
-
B.
John Cunningham virus
John Cunningham virus is a human polyomavirus that typically remains latent but can cause the severe demyelinating brain disease progressive multifocal leukoencephalopathy in immunocompromised individuals.
-
C.
CVM
CVM is the U.S. Food and Drug Administration’s Center for Veterinary Medicine, which regulates the safety and effectiveness of animal drugs and medicated feeds.
-
D.
Vircava
Vircava is a river in Latvia that serves as one of the tributaries feeding into the larger Lielupe River system.
-
E.
CVA
CVA is the commonly used abbreviation for the World Trade Organization’s Customs Valuation Agreement, which sets international rules for determining the customs value of imported goods.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Lexington-class aircraft carrier
ⓘ
aircraft carrier ⓘ hull classification symbol ⓘ |
| airGroupSize | approximately 70–90 aircraft ⓘ |
| armament |
5-inch anti-aircraft guns
ⓘ
8 × 8-inch guns (original configuration) ⓘ anti-aircraft machine guns ⓘ |
| beam | about 106 feet ⓘ |
| builder |
Bethlehem Shipbuilding Corporation
ⓘ
Fore River Shipyard ⓘ
linked to:
Fore River Shipyard, Quincy, Massachusetts
|
| causeOfLoss | internal explosions after torpedo and bomb hits ⓘ |
| class | Lexington-class aircraft carrier ⓘ |
| commissionedDate | 1927-12-14 ⓘ |
| conflict | World War II ⓘ |
| conversion | converted to aircraft carrier under Washington Naval Treaty ⓘ |
| country | United States of America ⓘ |
| crewComplement | over 2,000 officers and enlisted ⓘ |
| decommissionedDate | 1942-05-08 ⓘ |
| displacement | about 36,000 long tons (standard) ⓘ |
| fate | sunk in battle ⓘ |
| homeport | various U.S. Pacific bases ⓘ |
| hullClassificationSymbol | CV-2 ⓘ |
| laidDownAs | battlecruiser CC-1 ⓘ |
| laidDownDate | 1921-01-08 ⓘ |
| launchDate | 1925-10-03 ⓘ |
| length | about 888 feet ⓘ |
| namedAfter |
Battle of Lexington
ⓘ
linked to:
Battles of Lexington and Concord
Lexington, Massachusetts ⓘ |
| navyDesignation | CV-2 ⓘ |
| notableEngagement |
Battle of the Coral Sea
ⓘ
linked to:
Battle of Coral Sea
early Pacific War operations ⓘ |
| notableFor |
major role in early World War II carrier battles
ⓘ
pioneering U.S. Navy carrier aviation ⓘ |
| operator | United States Navy ⓘ |
| originalType | Lexington-class battlecruiser ⓘ |
| pennantNumber | CV-2 ⓘ |
| powerplant | turbo-electric drive system ⓘ |
| propulsion |
electric drive
ⓘ
steam turbines ⓘ |
| refersTo | USS Lexington (CV-2) ⓘ |
| role | fleet aircraft carrier ⓘ |
| scuttledBy | U.S. destroyers after damage became uncontrollable ⓘ |
| shipPrefix | USS ⓘ |
| sinkingDate | 1942-05-08 ⓘ |
| sinkingLocation | Coral Sea ⓘ |
| sisterShip |
USS Saratoga (CV-3)
ⓘ
linked to:
USS Saratoga
|
| sunkIn |
Battle of the Coral Sea
ⓘ
linked to:
Battle of Coral Sea
|
| survivors | majority of crew rescued ⓘ |
| theaterOfOperations |
Pacific Theater of World War II
ⓘ
linked to:
Pacific Theater of Operations
|
| topSpeed | about 33 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: CV-2 Description of subject: CV-2 was the hull classification symbol for USS Lexington, a pioneering U.S. Navy aircraft carrier that played a major role in early World War II naval aviation before being sunk in the Battle of the Coral Sea.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.