Bass Harbor Head Light
E524869
Bass Harbor Head Light is a historic lighthouse perched on rugged cliffs at the southwestern tip of Mount Desert Island in Maine, overlooking the entrance to Bass Harbor.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bass Harbor Head Light canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5475627 — 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: Bass Harbor Head Light Context triple: [Tremont, Maine, hasLandmark, Bass Harbor Head Light]
-
A.
Pemaquid Point Lighthouse
Pemaquid Point Lighthouse is a historic coastal beacon in Maine known for its dramatic rocky shoreline setting and iconic New England lighthouse architecture.
-
B.
Eastern Point Lighthouse
Eastern Point Lighthouse is a historic coastal beacon in Gloucester, Massachusetts, guiding ships at the entrance to Gloucester Harbor on the Atlantic Ocean.
-
C.
Sankaty Head Light
Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
-
D.
Brant Point Light
Brant Point Light is a historic lighthouse on Nantucket Island, Massachusetts, guiding vessels into Nantucket Harbor and known as one of the oldest lighthouse sites in the United States.
-
E.
Gay Head Light
Gay Head Light is a historic lighthouse on the cliffs of Aquinnah, Martha’s Vineyard, known for guiding maritime traffic and its distinctive red-brick tower overlooking the Atlantic.
- 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: Bass Harbor Head Light Target entity description: Bass Harbor Head Light is a historic lighthouse perched on rugged cliffs at the southwestern tip of Mount Desert Island in Maine, overlooking the entrance to Bass Harbor.
-
A.
Pemaquid Point Lighthouse
Pemaquid Point Lighthouse is a historic coastal beacon in Maine known for its dramatic rocky shoreline setting and iconic New England lighthouse architecture.
-
B.
Eastern Point Lighthouse
Eastern Point Lighthouse is a historic coastal beacon in Gloucester, Massachusetts, guiding ships at the entrance to Gloucester Harbor on the Atlantic Ocean.
-
C.
Sankaty Head Light
Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
-
D.
Brant Point Light
Brant Point Light is a historic lighthouse on Nantucket Island, Massachusetts, guiding vessels into Nantucket Harbor and known as one of the oldest lighthouse sites in the United States.
-
E.
Gay Head Light
Gay Head Light is a historic lighthouse on the cliffs of Aquinnah, Martha’s Vineyard, known for guiding maritime traffic and its distinctive red-brick tower overlooking the Atlantic.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic place
ⓘ
lighthouse ⓘ |
| alsoKnownAs |
Bass Harbor Head Light Station
NERFINISHED
ⓘ
Bass Harbor Head Lighthouse NERFINISHED ⓘ |
| automated | yes ⓘ |
| automationYear | 1974 ⓘ |
| constructionMaterial | brick ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| currentUse | active lighthouse ⓘ |
| focalHeight | 56 feet ⓘ |
| hasAccess |
public viewing area
ⓘ
short walking trail to viewing platforms ⓘ |
| hasFeature |
bell house
ⓘ
keeper's house ⓘ oil house ⓘ |
| hasLens | Fourth-order Fresnel lens ⓘ |
| height | 32 feet ⓘ |
| latitude | 44.2211° N ⓘ |
| lightCharacteristic | occulting white every 4 seconds ⓘ |
| lightRange | 13 nautical miles ⓘ |
| listedOn | National Register of Historic Places ⓘ |
| locatedAt | southwestern tip of Mount Desert Island ⓘ |
| locatedIn |
Acadia National Park
NERFINISHED
ⓘ
Hancock County, Maine NERFINISHED ⓘ Maine NERFINISHED ⓘ Mount Desert Island NERFINISHED ⓘ Southwest Harbor, Maine NERFINISHED ⓘ |
| locatedNear |
entrance to Bass Harbor
ⓘ
entrance to Blue Hill Bay ⓘ |
| locatedOn | rugged cliffs ⓘ |
| longitude | 68.3375° W ⓘ |
| managedBy | United States Coast Guard NERFINISHED ⓘ |
| nearestTown | Southwest Harbor NERFINISHED ⓘ |
| NRHPListingYear | 1988 ⓘ |
| NRHPReferenceNumber | 88003074 ⓘ |
| originalLens | Fifth-order Fresnel lens ⓘ |
| overlooks | Bass Harbor NERFINISHED ⓘ |
| ownedBy | United States Coast Guard NERFINISHED ⓘ |
| partOf | Acadia National Park scenic attractions ⓘ |
| region | New England NERFINISHED ⓘ |
| servesAs | aid to navigation ⓘ |
| state | Maine ⓘ |
| touristAttraction | yes ⓘ |
| towerColor | white ⓘ |
| towerShape | conical tower ⓘ |
| waterbodyServed |
Atlantic Ocean
NERFINISHED
ⓘ
Gulf of Maine NERFINISHED ⓘ |
| yearBuilt | 1858 ⓘ |
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: Bass Harbor Head Light Description of subject: Bass Harbor Head Light is a historic lighthouse perched on rugged cliffs at the southwestern tip of Mount Desert Island in Maine, overlooking the entrance to Bass Harbor.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tremont, Maine