Fort Casey
E762463
Fort Casey is a historic coastal defense fortification on Whidbey Island in Washington State, now part of a state park and known for its preserved gun batteries and scenic views of Puget Sound.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Casey canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T8808642 — 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 Casey Context triple: [Admiralty Head Lighthouse, associatedWith, Fort Casey]
-
A.
Fort Baker
Fort Baker is a historic former U.S. Army post at the north end of the Golden Gate Bridge in Marin County, California, now part of a waterfront park and conference area within the Golden Gate National Recreation Area.
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B.
Fort Gratiot
Fort Gratiot was a 19th-century U.S. Army fortification in Michigan that guarded the strategic junction of the St. Clair River and Lake Huron.
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C.
Fort Wrangell
Fort Wrangell was a 19th-century U.S. military post in what is now Wrangell, Alaska, established to assert American presence and control in the region following the Alaska Purchase.
-
D.
Fort Sherman
Fort Sherman was a former United States Army military installation on the Atlantic side of the Panama Canal, historically used for jungle warfare training and canal defense.
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E.
Fort St. Anthony
Fort St. Anthony was a European-built coastal stronghold on the former Gold Coast (in present-day Ghana) that played a role in West African trade and colonial expansion.
- 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 Casey Target entity description: Fort Casey is a historic coastal defense fortification on Whidbey Island in Washington State, now part of a state park and known for its preserved gun batteries and scenic views of Puget Sound.
-
A.
Fort Baker
Fort Baker is a historic former U.S. Army post at the north end of the Golden Gate Bridge in Marin County, California, now part of a waterfront park and conference area within the Golden Gate National Recreation Area.
-
B.
Fort Gratiot
Fort Gratiot was a 19th-century U.S. Army fortification in Michigan that guarded the strategic junction of the St. Clair River and Lake Huron.
-
C.
Fort Wrangell
Fort Wrangell was a 19th-century U.S. military post in what is now Wrangell, Alaska, established to assert American presence and control in the region following the Alaska Purchase.
-
D.
Fort Sherman
Fort Sherman was a former United States Army military installation on the Atlantic side of the Panama Canal, historically used for jungle warfare training and canal defense.
-
E.
Fort St. Anthony
Fort St. Anthony was a European-built coastal stronghold on the former Gold Coast (in present-day Ghana) that played a role in West African trade and colonial expansion.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
coastal defense fortification
ⓘ
former United States Army fort ⓘ historic site ⓘ |
| adjacentTo | Admiralty Head Lighthouse NERFINISHED ⓘ |
| associatedWith |
Fort Flagler
NERFINISHED
ⓘ
Fort Worden NERFINISHED ⓘ |
| category |
Military history of Washington State
ⓘ
State parks in Washington State ⓘ United States coastal fortifications ⓘ |
| constructedFor |
coastal defense
ⓘ
harbor defense of Puget Sound ⓘ |
| currentUse |
historical interpretation site
ⓘ
state park attraction ⓘ tourist destination ⓘ |
| era | Endicott Period coastal defenses NERFINISHED ⓘ |
| hasActivity |
historical tours
ⓘ
picnicking ⓘ scenic viewing of Puget Sound ⓘ wildlife viewing ⓘ |
| hasFeature |
bunkers
ⓘ
concrete gun batteries ⓘ disappearing guns ⓘ lighthouse nearby ⓘ underground magazines ⓘ |
| hasPreserved | large coastal artillery guns ⓘ |
| hasViewOf |
Olympic Mountains
NERFINISHED
ⓘ
shipping lanes of Puget Sound ⓘ |
| locatedIn |
Island County, Washington
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
Washington ⓘ
surface form:
Washington State
Whidbey Island NERFINISHED ⓘ |
| namedAfter | Brigadier General Thomas Lincoln Casey NERFINISHED ⓘ |
| near | Coupeville, Washington NERFINISHED ⓘ |
| openToPublic | true ⓘ |
| operatedBy | United States Army ⓘ |
| overlooks |
Admiralty Inlet
NERFINISHED
ⓘ
Puget Sound NERFINISHED ⓘ |
| ownedBy | Washington State Parks and Recreation Commission NERFINISHED ⓘ |
| partOf |
Fort Casey State Park
NERFINISHED
ⓘ
Harbor Defenses of Puget Sound NERFINISHED ⓘ Triangle of Fire NERFINISHED ⓘ |
| touristAccess | self-guided exploration of batteries ⓘ |
| usedDuring |
World War I
NERFINISHED
ⓘ
World War II ⓘ |
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 Casey Description of subject: Fort Casey is a historic coastal defense fortification on Whidbey Island in Washington State, now part of a state park and known for its preserved gun batteries and scenic views of Puget Sound.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.