Plymouth Breakwater Lighthouse
E463527
Plymouth Breakwater Lighthouse is a historic navigational beacon located at the seaward end of the Plymouth Breakwater in Plymouth Sound, England.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Plymouth Breakwater Lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4635432 — 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: Plymouth Breakwater Lighthouse Context triple: [Plymouth Breakwater, hasLighthouse, Plymouth Breakwater Lighthouse]
-
A.
Newhaven Lighthouse
Newhaven Lighthouse is a historic coastal beacon located at the entrance to Newhaven Harbour on the south coast of England.
-
B.
The Needles Lighthouse
The Needles Lighthouse is a prominent 19th-century lighthouse standing on a chalk stack off the western tip of the Isle of Wight, guiding ships through the treacherous waters of the English Channel.
-
C.
Scarborough Lighthouse
Scarborough Lighthouse is a historic coastal beacon in Scarborough, England, guiding ships along the North Sea and serving as a prominent feature of the town’s harbor.
-
D.
South Foreland Lighthouse
South Foreland Lighthouse is a historic Victorian-era lighthouse on England’s southeast coast, noted for being the first in the world to use an electric light and for its views over the English Channel.
-
E.
Perch Rock Lighthouse
Perch Rock Lighthouse is a historic 19th-century lighthouse off New Brighton at the mouth of the River Mersey in England, known for guiding ships entering the Port of Liverpool.
- 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: Plymouth Breakwater Lighthouse Target entity description: Plymouth Breakwater Lighthouse is a historic navigational beacon located at the seaward end of the Plymouth Breakwater in Plymouth Sound, England.
-
A.
Newhaven Lighthouse
Newhaven Lighthouse is a historic coastal beacon located at the entrance to Newhaven Harbour on the south coast of England.
-
B.
The Needles Lighthouse
The Needles Lighthouse is a prominent 19th-century lighthouse standing on a chalk stack off the western tip of the Isle of Wight, guiding ships through the treacherous waters of the English Channel.
-
C.
Scarborough Lighthouse
Scarborough Lighthouse is a historic coastal beacon in Scarborough, England, guiding ships along the North Sea and serving as a prominent feature of the town’s harbor.
-
D.
South Foreland Lighthouse
South Foreland Lighthouse is a historic Victorian-era lighthouse on England’s southeast coast, noted for being the first in the world to use an electric light and for its views over the English Channel.
-
E.
Perch Rock Lighthouse
Perch Rock Lighthouse is a historic 19th-century lighthouse off New Brighton at the mouth of the River Mersey in England, known for guiding ships entering the Port of Liverpool.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
heritage structure
ⓘ
lighthouse ⓘ navigational aid ⓘ |
| access | not generally open to the public ⓘ |
| associatedStructure | Plymouth Breakwater ⓘ |
| automationStatus | automated ⓘ |
| bodyOfWater | English Channel ⓘ |
| category |
Buildings and structures in Plymouth, Devon
ⓘ
Grade II listed lighthouses ⓘ Lighthouses in Devon ⓘ |
| color | white ⓘ |
| constructionEnd | mid 19th century ⓘ |
| constructionStart | early 19th century ⓘ |
| country | United Kingdom ⓘ |
| function |
guiding ships into Plymouth Sound
ⓘ
warning of breakwater structure ⓘ |
| hasFeature |
gallery
ⓘ
lantern ⓘ white tower ⓘ |
| heritageStatus | Grade II listed building ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| lightRange | about 12 nautical miles ⓘ |
| locatedAt | seaward end of Plymouth Breakwater ⓘ |
| locatedIn |
Devon
ⓘ
England ⓘ Plymouth ⓘ Plymouth Sound ⓘ |
| locatedNear |
City of Plymouth waterfront
ⓘ
linked to:
Plymouth Dock
Devonport Naval Base ⓘ
linked to:
HMNB Devonport
Drake's Island ⓘ |
| locatedOn | Plymouth Breakwater ⓘ |
| managingAgent | Trinity House ⓘ |
| material |
granite
ⓘ
stone ⓘ |
| navigationArea | approaches to Plymouth Sound ⓘ |
| notableFor |
historic role in naval and commercial navigation to Plymouth
ⓘ
marking the seaward end of Plymouth Breakwater ⓘ |
| originalOperation | manned lighthouse ⓘ |
| originalPowerSource | oil lamp ⓘ |
| owner | Trinity House ⓘ |
| powerSource | electric light ⓘ |
| purpose |
aid to navigation
ⓘ
marking entrance to Plymouth Sound ⓘ |
| region |
South West England
ⓘ
linked to:
southwest England
|
| servesPort |
Port of Plymouth
ⓘ
linked to:
Plymouth Harbour
|
| status | active lighthouse ⓘ |
| towerShape | cylindrical tower ⓘ |
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: Plymouth Breakwater Lighthouse Description of subject: Plymouth Breakwater Lighthouse is a historic navigational beacon located at the seaward end of the Plymouth Breakwater in Plymouth Sound, England.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.