Gloucester breakwater
E188361
Gloucester breakwater is a protective stone structure extending into the Atlantic Ocean that shelters Gloucester Harbor in Massachusetts from waves and storms.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Gloucester Harbor defenses against shipwrecks | 1 |
| Gloucester breakwater canonical | 1 |
| Gloucester harbor defenses | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1670497 — 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: Gloucester breakwater Context triple: [Gloucester Harbor, hasPart, Gloucester breakwater]
-
A.
Plymouth Breakwater
Plymouth Breakwater is a massive early 19th-century stone breakwater in Plymouth Sound, England, built to protect the naval anchorage and harbor from the open sea.
-
B.
Gloucester Docks
Gloucester Docks is a historic inland port complex in Gloucester, England, known for its preserved Victorian warehouses and role in regional maritime trade along the River Severn.
-
C.
Newport Arch
Newport Arch is a well-preserved Roman city gate in Lincoln, England, and one of the finest surviving examples of its kind in Britain.
-
D.
Portsmouth Harbour
Portsmouth Harbour is a natural harbour on England’s south coast that serves as a major Royal Navy base and maritime hub for the city of Portsmouth.
-
E.
Pembroke Dock
Pembroke Dock is a coastal town in southwest Wales known historically for its naval dockyard and shipbuilding heritage.
- 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: Gloucester breakwater Target entity description: Gloucester breakwater is a protective stone structure extending into the Atlantic Ocean that shelters Gloucester Harbor in Massachusetts from waves and storms.
-
A.
Plymouth Breakwater
Plymouth Breakwater is a massive early 19th-century stone breakwater in Plymouth Sound, England, built to protect the naval anchorage and harbor from the open sea.
-
B.
Gloucester Docks
Gloucester Docks is a historic inland port complex in Gloucester, England, known for its preserved Victorian warehouses and role in regional maritime trade along the River Severn.
-
C.
Newport Arch
Newport Arch is a well-preserved Roman city gate in Lincoln, England, and one of the finest surviving examples of its kind in Britain.
-
D.
Portsmouth Harbour
Portsmouth Harbour is a natural harbour on England’s south coast that serves as a major Royal Navy base and maritime hub for the city of Portsmouth.
-
E.
Pembroke Dock
Pembroke Dock is a coastal town in southwest Wales known historically for its naval dockyard and shipbuilding heritage.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
breakwater
ⓘ
coastal engineering structure ⓘ |
| coast | New England coast ⓘ |
| constructionType | rubble-mound breakwater ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| environment | marine environment ⓘ |
| hasAccess | by boat ⓘ |
| hasFunction |
shelters harbor from storms
ⓘ
shelters harbor from waves ⓘ |
| hasMaterial |
granite
ⓘ
stone ⓘ |
| isPartOf | infrastructure of Gloucester Harbor ⓘ |
| locatedIn |
Essex County, Massachusetts
ⓘ
Gloucester Harbor ⓘ Gloucester, Massachusetts, United States ⓘ
surface form:
Gloucester, Massachusetts
Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| locatedInBodyOfWater | Atlantic Ocean ⓘ |
| nearbyCity | Gloucester ⓘ |
| orientation | extends into the Atlantic Ocean ⓘ |
| partOf | harbor defenses of Gloucester Harbor ⓘ |
| protects | Gloucester Harbor ⓘ |
| purpose |
coastal erosion reduction
ⓘ
harbor protection ⓘ storm protection ⓘ wave attenuation ⓘ |
| state | Massachusetts ⓘ |
| subjectOf |
coastal engineering studies
ⓘ
nautical charts of Gloucester Harbor ⓘ |
| usedFor |
commercial fishing harbor protection
ⓘ
recreational boating harbor protection ⓘ |
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: Gloucester breakwater Description of subject: Gloucester breakwater is a protective stone structure extending into the Atlantic Ocean that shelters Gloucester Harbor in Massachusetts from waves and storms.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Gloucester harbor defenses
this entity surface form:
Gloucester Harbor defenses against shipwrecks