Fort Drum
E253499
Fort Drum is a heavily fortified concrete sea fort in the Philippines, built on an island in Manila Bay and often called the “concrete battleship” for its ship-like appearance and armament.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Drum canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T2264637 — 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: Fort Drum Context triple: [Manila Bay, hasFortification, Fort Drum]
-
A.
Fort Drum
Fort Drum is a major U.S. Army installation in northern New York that serves as the home of the 10th Mountain Division and a key training center for light infantry forces.
-
B.
Fort Tilden
Fort Tilden is a former U.S. Army coastal defense installation on the Rockaway Peninsula in Queens, New York, now part of the Gateway National Recreation Area and used for beaches, trails, and historic military structures.
-
C.
Fort Phil Kearny
Fort Phil Kearny was a 19th-century U.S. Army outpost in present-day Wyoming that became a focal point of conflict between the United States and Lakota Sioux during the Indian Wars.
-
D.
Schofield Barracks
Schofield Barracks is a major U.S. Army installation in central Oahu, Hawaii, serving as a key training and operational base for Pacific forces.
-
E.
Fort Totten
Fort Totten is a residential neighborhood in Northeast Washington, D.C., known for its proximity to the large Fort Totten Metro station and the historic Civil War-era fort site.
- 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: Fort Drum Target entity description: Fort Drum is a heavily fortified concrete sea fort in the Philippines, built on an island in Manila Bay and often called the “concrete battleship” for its ship-like appearance and armament.
-
A.
Fort Drum
Fort Drum is a major U.S. Army installation in northern New York that serves as the home of the 10th Mountain Division and a key training center for light infantry forces.
-
B.
Fort Tilden
Fort Tilden is a former U.S. Army coastal defense installation on the Rockaway Peninsula in Queens, New York, now part of the Gateway National Recreation Area and used for beaches, trails, and historic military structures.
-
C.
Fort Phil Kearny
Fort Phil Kearny was a 19th-century U.S. Army outpost in present-day Wyoming that became a focal point of conflict between the United States and Lakota Sioux during the Indian Wars.
-
D.
Schofield Barracks
Schofield Barracks is a major U.S. Army installation in central Oahu, Hawaii, serving as a key training and operational base for Pacific forces.
-
E.
Fort Totten
Fort Totten is a residential neighborhood in Northeast Washington, D.C., known for its proximity to the large Fort Totten Metro station and the historic Civil War-era fort site.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
coastal defense fortification
ⓘ
military installation ⓘ sea fort ⓘ |
| alsoKnownAs |
Concrete Battleship
ⓘ
Fortress El Fraile ⓘ |
| armament |
4 × 14-inch guns in two twin turrets
ⓘ
4 × 6-inch guns in casemates ⓘ anti-aircraft guns ⓘ |
| builtBy | United States Army ⓘ |
| builtUnder |
Taft Board coastal defense program
ⓘ
linked to:
Endicott Period coast defenses
|
| captureDate | May 1942 ⓘ |
| capturedBy | Imperial Japanese Army ⓘ |
| constructionEndDate | 1914 ⓘ |
| constructionStartDate | 1909 ⓘ |
| country | Philippines ⓘ |
| currentStatus | ruin ⓘ |
| currentUse | abandoned military fortification ⓘ |
| designedAs | concrete battleship ⓘ |
| feature |
casemated secondary batteries
ⓘ
crew quarters ⓘ heavily fortified concrete structure ⓘ observation and fire-control stations ⓘ ship-like appearance ⓘ turreted main guns ⓘ underground magazines ⓘ |
| garrisonedBy |
Philippine Scouts
ⓘ
United States Army Coast Artillery Corps ⓘ
linked to:
United States Coast Artillery Corps
|
| height | approximately 40 feet above waterline ⓘ |
| length | approximately 350 feet ⓘ |
| locatedIn |
Cavite, Philippines
ⓘ
linked to:
Cavite
Manila Bay ⓘ |
| locatedOn |
El Fraile Island
ⓘ
linked to:
Caballo Island
|
| material | reinforced concrete ⓘ |
| namedAfter | Brigadier General Richard Coulter Drum ⓘ |
| notableEvent | siege during the Japanese invasion of the Philippines in 1942 ⓘ |
| partOf |
Harbor Defenses of Manila and Subic Bays
ⓘ
United States coastal defenses in the Philippines ⓘ
linked to:
Harbor Defenses of Manila and Subic Bays
|
| purpose | harbor defense of Manila Bay ⓘ |
| recaptureDate | April 1945 ⓘ |
| recapturedBy |
United States forces
ⓘ
linked to:
United States Armed Forces
|
| recaptureMethod | injection of fuel and explosives into interior to neutralize garrison ⓘ |
| significance |
key element of early 20th-century U.S. coastal defense strategy in the Philippines
ⓘ
unique example of a concrete sea fort shaped like a battleship ⓘ |
| tourism | occasional destination for historical and military enthusiasts ⓘ |
| usedDuring |
World War I
ⓘ
World War II ⓘ |
| wallThickness | up to 36 feet of concrete ⓘ |
| width | approximately 144 feet ⓘ |
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: Fort Drum Description of subject: Fort Drum is a heavily fortified concrete sea fort in the Philippines, built on an island in Manila Bay and often called the “concrete battleship” for its ship-like appearance and armament.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.