Severn crossings
E459289
The Severn crossings are major road and rail bridges spanning the River Severn between England and Wales, serving as key transport links in the region.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Severn crossings canonical | 3 |
| Severn Bridge crossings | 1 |
| Severn Estuary road crossings | 1 |
| Severn bridges (distant) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4644594 — 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: Severn crossings Context triple: [Gwent, hasFeature, Severn crossings]
-
A.
Severn Bridge
Severn Bridge is a major suspension bridge in the United Kingdom that spans the River Severn and connects England with South Wales.
-
B.
Dartford Crossing
The Dartford Crossing is a major road crossing of the River Thames in southeast England, consisting of tunnels and a cable-stayed bridge that carry heavy traffic between Kent and Essex.
-
C.
Severn Tunnel
Severn Tunnel is a major railway tunnel in the United Kingdom that runs beneath the River Severn, linking South West England with South Wales.
-
D.
Itchen Bridge toll bridge
The Itchen Bridge toll bridge is a major road bridge in Southampton, England, carrying traffic across the River Itchen between Woolston and the city centre.
-
E.
Maidenhead Bridge
Maidenhead Bridge is a historic stone road bridge over the River Thames in Berkshire, England, renowned for its elegant arches and role as a key crossing near the town of Maidenhead.
- 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: Severn crossings Target entity description: The Severn crossings are major road and rail bridges spanning the River Severn between England and Wales, serving as key transport links in the region.
-
A.
Severn Bridge
Severn Bridge is a major suspension bridge in the United Kingdom that spans the River Severn and connects England with South Wales.
-
B.
Dartford Crossing
The Dartford Crossing is a major road crossing of the River Thames in southeast England, consisting of tunnels and a cable-stayed bridge that carry heavy traffic between Kent and Essex.
-
C.
Severn Tunnel
Severn Tunnel is a major railway tunnel in the United Kingdom that runs beneath the River Severn, linking South West England with South Wales.
-
D.
Itchen Bridge toll bridge
The Itchen Bridge toll bridge is a major road bridge in Southampton, England, carrying traffic across the River Itchen between Woolston and the city centre.
-
E.
Maidenhead Bridge
Maidenhead Bridge is a historic stone road bridge over the River Thames in Berkshire, England, renowned for its elegant arches and role as a key crossing near the town of Maidenhead.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
group of bridges
ⓘ
transport infrastructure ⓘ |
| carries |
Great Western Main Line
NERFINISHED
ⓘ
M4 motorway NERFINISHED ⓘ M48 motorway NERFINISHED ⓘ |
| connects |
England
NERFINISHED
ⓘ
Wales NERFINISHED ⓘ |
| countryCrossed | England–Wales border NERFINISHED ⓘ |
| crossesAt | Severn Estuary NERFINISHED ⓘ |
| hasComponent |
cable-stayed bridge
ⓘ
rail tunnel ⓘ suspension bridge ⓘ |
| hasTollStatus | tolls abolished ⓘ |
| includes |
Prince of Wales Bridge
NERFINISHED
ⓘ
Second Severn Crossing NERFINISHED ⓘ Severn Bridge NERFINISHED ⓘ Severn Railway Bridge NERFINISHED ⓘ Severn Tunnel NERFINISHED ⓘ |
| locatedIn | United Kingdom ⓘ |
| nearbyCity |
Bristol
NERFINISHED
ⓘ
Newport NERFINISHED ⓘ |
| openedInStages | from 19th century to late 20th century ⓘ |
| operatedBy | National Highways NERFINISHED ⓘ |
| partOf |
M4 motorway route
NERFINISHED
ⓘ
M48 motorway route NERFINISHED ⓘ |
| regionServed |
South Wales
NERFINISHED
ⓘ
South West England NERFINISHED ⓘ |
| riverCrossed | Severn Estuary NERFINISHED ⓘ |
| spans | River Severn NERFINISHED ⓘ |
| strategicImportance | key link between South West England and South Wales ⓘ |
| tollsAbolishedOn | 2018 ⓘ |
| usedFor |
rail transport
ⓘ
road transport ⓘ |
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: Severn crossings Description of subject: The Severn crossings are major road and rail bridges spanning the River Severn between England and Wales, serving as key transport links in the region.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Severn bridges (distant)
this entity surface form:
Severn Estuary road crossings