Third System masonry fort
E965158
UNEXPLORED
A Third System masonry fort is a large 19th-century U.S. coastal defense structure built primarily of brick and stone as part of a standardized federal fortification program.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Third System coastal fort | 1 |
| Third System masonry fort canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12162141 — 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: Third System masonry fort Context triple: [Fort Macon, architecturalStyle, Third System masonry fort]
-
A.
Fort Ward
Fort Ward is a historic waterfront neighborhood and former military installation on Bainbridge Island in Washington State.
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B.
United States frontier fort system
The United States frontier fort system was a network of military outposts established along the expanding American frontier to protect settlers, assert federal authority, and secure territorial claims during the 18th and 19th centuries.
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C.
Western Heights fortifications
The Western Heights fortifications are a major 19th-century defensive complex overlooking Dover, England, built to protect the town and its strategic port from invasion.
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D.
Merrickville Blockhouse
Merrickville Blockhouse is a historic 19th-century defensive structure in Merrickville, Ontario, built to protect the Rideau Canal and now preserved as a national historic site.
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E.
Coehoorn system of fortification
The Coehoorn system of fortification is an early modern Dutch defensive design that refined bastioned fortresses with intricate outworks and low, compact profiles to better resist artillery and improve fields of fire.
- 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: Third System masonry fort Target entity description: A Third System masonry fort is a large 19th-century U.S. coastal defense structure built primarily of brick and stone as part of a standardized federal fortification program.
-
A.
Fort Ward
Fort Ward is a historic waterfront neighborhood and former military installation on Bainbridge Island in Washington State.
-
B.
United States frontier fort system
The United States frontier fort system was a network of military outposts established along the expanding American frontier to protect settlers, assert federal authority, and secure territorial claims during the 18th and 19th centuries.
-
C.
Western Heights fortifications
The Western Heights fortifications are a major 19th-century defensive complex overlooking Dover, England, built to protect the town and its strategic port from invasion.
-
D.
Merrickville Blockhouse
Merrickville Blockhouse is a historic 19th-century defensive structure in Merrickville, Ontario, built to protect the Rideau Canal and now preserved as a national historic site.
-
E.
Coehoorn system of fortification
The Coehoorn system of fortification is an early modern Dutch defensive design that refined bastioned fortresses with intricate outworks and low, compact profiles to better resist artillery and improve fields of fire.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Third System masonry fort