Fort Scammel
E656374
Fort Scammel is a historic coastal defense fortification located on House Island in Portland Harbor, Maine, built in the early 19th century to protect the harbor and its shipping channels.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Scammel canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T7329246 — 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 Scammel Context triple: [Fort Gorges, nearbyPlace, Fort Scammel]
-
A.
Fort Bokar
Fort Bokar is a prominent 15th-century stone fortress guarding the seaward entrance to Dubrovnik’s Old City walls in Croatia.
-
B.
Fort Crèvecœur
Fort Crèvecœur was a Dutch colonial fort on the Gold Coast in present-day Ghana, historically used as a trading post and military stronghold.
-
C.
Fort C. F. Smith
Fort C. F. Smith was a 19th-century U.S. Army post in Montana Territory that protected travelers along the Bozeman Trail and became a focal point of conflict during Red Cloud's War.
-
D.
Fort Scratchley
Fort Scratchley is a historic coastal defense fort and museum in Newcastle, New South Wales, known for its commanding views over the Pacific Ocean and its role in protecting the city, including during World War II.
-
E.
Fort DeRussy
Fort DeRussy is a former U.S. Army coastal defense installation in Honolulu, Hawaii, now largely serving as a military recreation area and green space near Waikiki.
- 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 Scammel Target entity description: Fort Scammel is a historic coastal defense fortification located on House Island in Portland Harbor, Maine, built in the early 19th century to protect the harbor and its shipping channels.
-
A.
Fort Bokar
Fort Bokar is a prominent 15th-century stone fortress guarding the seaward entrance to Dubrovnik’s Old City walls in Croatia.
-
B.
Fort Crèvecœur
Fort Crèvecœur was a Dutch colonial fort on the Gold Coast in present-day Ghana, historically used as a trading post and military stronghold.
-
C.
Fort C. F. Smith
Fort C. F. Smith was a 19th-century U.S. Army post in Montana Territory that protected travelers along the Bozeman Trail and became a focal point of conflict during Red Cloud's War.
-
D.
Fort Scratchley
Fort Scratchley is a historic coastal defense fort and museum in Newcastle, New South Wales, known for its commanding views over the Pacific Ocean and its role in protecting the city, including during World War II.
-
E.
Fort DeRussy
Fort DeRussy is a former U.S. Army coastal defense installation in Honolulu, Hawaii, now largely serving as a military recreation area and green space near Waikiki.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf | coastal defense fortification ⓘ |
| access | only by boat ⓘ |
| bodyOfWater | Casco Bay ⓘ |
| builtFor |
coastal defense
ⓘ
protection of Portland Harbor shipping channels ⓘ |
| category |
Buildings and structures in Portland, Maine
ⓘ
Coastal fortifications in the United States ⓘ Forts in Maine ⓘ |
| constructionBegan | early 19th century ⓘ |
| controlledBy | United States Army ⓘ |
| coordinateSystem | geographic coordinates ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| era | 19th-century American coastal fortification ⓘ |
| garrisonedBy |
United States Army troops
ⓘ
linked to:
United States Army personnel
|
| harborProtected |
Portland Harbor
ⓘ
linked to:
Portland harbor
|
| hasFeature |
bastions
ⓘ
casemates ⓘ gun emplacements ⓘ parade ground ⓘ |
| hasFunction |
artillery battery
ⓘ
harbor defense ⓘ |
| heritageDesignation | local historic significance ⓘ |
| locatedIn |
Cumberland County, Maine
ⓘ
House Island ⓘ Maine ⓘ Portland Harbor ⓘ Portland, Maine ⓘ United States ⓘ
linked to:
United States of America
|
| locatedOn |
House Island, Casco Bay
ⓘ
linked to:
House Island (Casco Bay)
island ⓘ |
| materialUsed |
brick
ⓘ
stone ⓘ |
| namedAfter | Alexander Scammell ⓘ |
| near |
city of Portland, Maine
ⓘ
linked to:
Portland, Maine
|
| partOf |
Third System of US seacoast fortifications
ⓘ
linked to:
Third System of US seacoast defense
defenses of Casco Bay ⓘ |
| status | historic site ⓘ |
| surroundedBy | Atlantic Ocean ⓘ |
| usedDuring |
American Civil War
ⓘ
War of 1812 ⓘ |
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 Scammel Description of subject: Fort Scammel is a historic coastal defense fortification located on House Island in Portland Harbor, Maine, built in the early 19th century to protect the harbor and its shipping channels.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.