Thames Head
E37608
Thames Head is the traditionally recognized spring in Gloucestershire, England, regarded as the starting point of the River Thames.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Thames Head canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T274978 — 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: Thames Head Context triple: [Thames, sourceLocation, Thames Head]
-
A.
Chelsea Creek
Chelsea Creek is a tidal waterway in the Boston area that serves as an important industrial and shipping channel between Chelsea and East Boston, Massachusetts.
-
B.
Henley-on-Thames
Henley-on-Thames is a historic English riverside town in Oxfordshire, best known for hosting the annual Henley Royal Regatta on the River Thames.
-
C.
Molesey
Molesey is a suburban town in south-east England situated on the River Thames, known for its proximity to Hampton Court Palace and its residential character within the London commuter belt.
-
D.
Thames Estuary
The Thames Estuary is the broad tidal mouth of the River Thames where it meets the North Sea, forming a major shipping route and ecological zone in southeast England.
-
E.
Sowerby Bridge
Sowerby Bridge is a market town in Calderdale, West Yorkshire, England, known for its industrial heritage, canal and railway junctions, and position in the Upper Calder Valley.
- 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: Thames Head Target entity description: Thames Head is the traditionally recognized spring in Gloucestershire, England, regarded as the starting point of the River Thames.
-
A.
Chelsea Creek
Chelsea Creek is a tidal waterway in the Boston area that serves as an important industrial and shipping channel between Chelsea and East Boston, Massachusetts.
-
B.
Henley-on-Thames
Henley-on-Thames is a historic English riverside town in Oxfordshire, best known for hosting the annual Henley Royal Regatta on the River Thames.
-
C.
Molesey
Molesey is a suburban town in south-east England situated on the River Thames, known for its proximity to Hampton Court Palace and its residential character within the London commuter belt.
-
D.
Thames Estuary
The Thames Estuary is the broad tidal mouth of the River Thames where it meets the North Sea, forming a major shipping route and ecological zone in southeast England.
-
E.
Sowerby Bridge
Sowerby Bridge is a market town in Calderdale, West Yorkshire, England, known for its industrial heritage, canal and railway junctions, and position in the Upper Calder Valley.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
source of a river ⓘ spring ⓘ |
| administrativeTerritory | Cotswold District ⓘ |
| category |
Landforms of Gloucestershire
ⓘ
River Thames ⓘ
linked to:
Thames
Springs of England ⓘ |
| country | England ⓘ |
| elevation | approximately 110 metres above sea level ⓘ |
| gridReferenceSystem |
Ordnance Survey National Grid
ⓘ
linked to:
British National Grid
|
| hasFeature | inscribed stone with distances to the Thames Barrier and sea ⓘ |
| hasMarker | stone marker indicating the source of the Thames ⓘ |
| hasStatus | often dry at the surface in summer ⓘ |
| heritageStatus | traditional rather than strictly hydrological source ⓘ |
| hydrologicalNote | actual perennial headwaters of the Thames often traced to sources near Seven Springs or other tributaries ⓘ |
| locatedIn |
Cotswolds
ⓘ
Gloucestershire ⓘ |
| locatedNear |
Cirencester
ⓘ
Kemble ⓘ Trewsbury Mead ⓘ |
| nearInfrastructure |
Fosse Way
ⓘ
Thames and Severn Canal ⓘ |
| nearRoad | A433 road ⓘ |
| nearSettlement |
Coates
ⓘ
Ewen ⓘ |
| partOf | River Thames drainage basin ⓘ |
| recognizedAs | starting point of the River Thames ⓘ |
| region |
South West England
ⓘ
linked to:
southwest England
|
| sourceOf |
River Thames
ⓘ
linked to:
Thames
|
| startPointOf | Thames Path ⓘ |
| tourism | visited by walkers on the Thames Path ⓘ |
| traditionalSourceOf |
River Thames
ⓘ
linked to:
Thames
|
| watercourse |
River Thames
ⓘ
linked to:
Thames
|
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: Thames Head Description of subject: Thames Head is the traditionally recognized spring in Gloucestershire, England, regarded as the starting point of the River Thames.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.