Nobska Light
E265789
Nobska Light is a historic lighthouse on Cape Cod that overlooks Vineyard Sound and serves as a prominent maritime navigational aid and local landmark.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Nobska Light canonical | 6 |
| Nobska Lighthouse | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2361949 — 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: Nobska Light Context triple: [Woods Hole, Massachusetts, United States, hasLandmark, Nobska Light]
-
A.
Nauset Light
Nauset Light is a historic, red-and-white lighthouse on Cape Cod in Massachusetts, known as an iconic coastal landmark and symbol of the region.
-
B.
Long Point Light
Long Point Light is a historic lighthouse marking the entrance to Provincetown Harbor at the tip of Cape Cod, Massachusetts.
-
C.
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.
-
D.
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.
-
E.
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.
- 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: Nobska Light Target entity description: Nobska Light is a historic lighthouse on Cape Cod that overlooks Vineyard Sound and serves as a prominent maritime navigational aid and local landmark.
-
A.
Nauset Light
Nauset Light is a historic, red-and-white lighthouse on Cape Cod in Massachusetts, known as an iconic coastal landmark and symbol of the region.
-
B.
Long Point Light
Long Point Light is a historic lighthouse marking the entrance to Provincetown Harbor at the tip of Cape Cod, Massachusetts.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
historic place
ⓘ
lighthouse ⓘ |
| constructionMaterial | cast-iron tower ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Barnstable County, Massachusetts ⓘ |
| focalHeight |
about 27 meters
ⓘ
about 87 feet ⓘ |
| function |
guides vessels in Vineyard Sound
ⓘ
marks approach to Woods Hole ⓘ |
| hasAttached | keeper’s house ⓘ |
| hasFeature |
fog bell (historic)
ⓘ
gallery ⓘ lantern room ⓘ |
| hasViewOf |
Elizabeth Islands
ⓘ
Martha's Vineyard ⓘ
surface form:
Martha’s Vineyard
Vineyard Sound ⓘ |
| height |
about 12 meters
ⓘ
about 40 feet ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| isTouristAttraction | true ⓘ |
| lightCharacteristic |
alternating red and white light
ⓘ
occulting light ⓘ |
| listedOn | National Register of Historic Places ⓘ |
| locatedIn |
Falmouth, Massachusetts, United States
ⓘ
surface form:
Falmouth, Massachusetts
Woods Hole, Massachusetts, United States ⓘ
surface form:
Woods Hole, Massachusetts
|
| locatedNear |
Nobska Point
ⓘ
Woods Hole passage ⓘ |
| locatedOn | Cape Cod ⓘ |
| managingAgent | Town of Falmouth ⓘ |
| marking |
black lantern
ⓘ
red roof on keeper’s house ⓘ white tower ⓘ |
| NRHPType | historic district contributing property ⓘ |
| openForTours | seasonal ⓘ |
| overlooks |
Elizabeth Islands
ⓘ
Martha's Vineyard ⓘ
surface form:
Martha’s Vineyard
Vineyard Sound ⓘ |
| previousManagingAgent | United States Coast Guard ⓘ |
| range | about 13 nautical miles ⓘ |
| servesAs |
local landmark
ⓘ
navigational aid ⓘ |
| state | Massachusetts ⓘ |
| towerShape | cylindrical tower ⓘ |
| yearLit | 1876 ⓘ |
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: Nobska Light Description of subject: Nobska Light is a historic lighthouse on Cape Cod that overlooks Vineyard Sound and serves as a prominent maritime navigational aid and local landmark.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Nobska Point
subject surface form:
Nobska Point
this entity surface form:
Nobska Lighthouse
this entity surface form:
Nobska Lighthouse