Plymouth Sound
E68429
Plymouth Sound is a large natural harbor and bay on the south coast of Devon, England, known for its maritime history and strategic naval importance.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T513124 — 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 Sound Context triple: [Plymouth, England, hasLandmark, Plymouth Sound]
-
A.
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.
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B.
Cardigan Bay
Cardigan Bay is a large, shallow bay on the west coast of Wales known for its scenic coastline, sandy beaches, and rich marine wildlife, including bottlenose dolphins.
-
C.
Bristol Channel
The Bristol Channel is a major inlet of the Atlantic Ocean separating South Wales from southwest England and providing access to the Severn Estuary.
-
D.
Ipswich Bay
Ipswich Bay is a coastal embayment in northeastern Massachusetts known for its scenic shoreline, fishing grounds, and location between Cape Ann and the New Hampshire border.
-
E.
Plymouth Harbor
Plymouth Harbor is a historic natural harbor on the Atlantic coast of Massachusetts, best known as the landing site of the Pilgrims in 1620 and a focal point of early colonial New England.
- 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 Sound Target entity description: Plymouth Sound is a large natural harbor and bay on the south coast of Devon, England, known for its maritime history and strategic naval importance.
-
A.
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.
-
B.
Cardigan Bay
Cardigan Bay is a large, shallow bay on the west coast of Wales known for its scenic coastline, sandy beaches, and rich marine wildlife, including bottlenose dolphins.
-
C.
Bristol Channel
The Bristol Channel is a major inlet of the Atlantic Ocean separating South Wales from southwest England and providing access to the Severn Estuary.
-
D.
Ipswich Bay
Ipswich Bay is a coastal embayment in northeastern Massachusetts known for its scenic shoreline, fishing grounds, and location between Cape Ann and the New Hampshire border.
-
E.
Plymouth Harbor
Plymouth Harbor is a historic natural harbor on the Atlantic coast of Massachusetts, best known as the landing site of the Pilgrims in 1620 and a focal point of early colonial New England.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
bay
ⓘ
natural harbour ⓘ |
| adjacentTo |
Plymouth
ⓘ
surface form:
City of Plymouth
Cornwall ⓘ |
| borderedBy |
Mount Batten
ⓘ
Mount Edgcumbe Country Park ⓘ Plymouth Hoe ⓘ |
| country | United Kingdom ⓘ |
| designation |
Plymouth Sound
self-linksurface differs
ⓘ
surface form:
Plymouth Sound National Marine Park
|
| ecosystemType | coastal marine ecosystem ⓘ |
| hasBiodiversity |
intertidal habitats
ⓘ
rocky reef habitats ⓘ seagrass beds ⓘ |
| hasInflow |
River Lynher
ⓘ
River Plym ⓘ River Tamar ⓘ |
| hasPart |
Cattewater
ⓘ
Cawsand Bay ⓘ Devil’s Point ⓘ Drake's Island ⓘ
surface form:
Drake’s Island
Hamoaze ⓘ Jennycliff Bay ⓘ Mount Batten Peninsula ⓘ Mount Edgcumbe ⓘ The Hoe ⓘ The Narrows ⓘ |
| hasStructure |
Plymouth Breakwater
ⓘ
breakwater forts ⓘ lighthouses ⓘ |
| historicalEvent |
Royal Navy operations during World War I
ⓘ
Royal Navy operations during World War II ⓘ Royal Navy ⓘ
surface form:
Royal Navy operations during the Napoleonic Wars
departure point of the Mayflower in 1620 ⓘ |
| knownFor |
maritime history
ⓘ
strategic naval importance ⓘ |
| locatedIn |
Devon
ⓘ
England ⓘ |
| locatedOn | south coast of Devon ⓘ |
| near |
HMNB Devonport
ⓘ
Plymouth Breakwater ⓘ Royal William Yard ⓘ |
| partOf | English Channel ⓘ |
| protectedStatus |
Marine Conservation Zone
ⓘ
Fathom Five National Marine Park ⓘ
surface form:
National Marine Park
|
| tourism |
coastal recreation
ⓘ
diving ⓘ sailing ⓘ |
| usedFor |
commercial shipping
ⓘ
naval anchorage ⓘ recreational boating ⓘ |
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 Sound Description of subject: Plymouth Sound is a large natural harbor and bay on the south coast of Devon, England, known for its maritime history and strategic naval importance.
Referenced by (61)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Plymouth Sound and Estuaries system
this entity surface form:
Plymouth Sound National Marine Park
this entity surface form:
Devon coast (across Bristol Channel)
this entity surface form:
Plymouth Sound from the open English Channel
this entity surface form:
Plymouth Sound and Estuaries marine area
this entity surface form:
Plymouth Sound area
subject surface form:
Drake’s Island
subject surface form:
Drake’s Island
subject surface form:
Drake’s Island
subject surface form:
The Narrows (Plymouth)
subject surface form:
The Narrows (Plymouth)
subject surface form:
The Narrows (Plymouth)
subject surface form:
The Narrows (Plymouth)