M48 motorway (via Chepstow)
E743340
The M48 motorway is a major route in the United Kingdom that crosses the River Severn between England and Wales, providing access to Chepstow and surrounding areas.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M48 motorway (via Chepstow) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8558216 — 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: M48 motorway (via Chepstow) Context triple: [Pwllmeyric, hasRoadConnection, M48 motorway (via Chepstow)]
-
A.
M5 motorway near Avonmouth
The M5 motorway near Avonmouth is a major section of the M5 in southwest England that serves as a key approach to Bristol and an important connection point between regional and national road networks.
-
B.
M40 motorway
The M40 motorway is a major English motorway linking London to Birmingham, serving as a key route through the Midlands and the southeast of England.
-
C.
M42 motorway
The M42 motorway is a major orbital route in the West Midlands of England that helps divert traffic around Birmingham and connects several key motorways, including the M5, M6, and M40.
-
D.
M6 motorway in England
The M6 motorway in England is a major north–south route linking the Midlands to the Scottish border, forming a key part of the United Kingdom’s primary western motorway corridor.
-
E.
M54 motorway
The M54 motorway is a key road in the West Midlands of England that links the M6 near Wolverhampton to Telford and provides an important route toward Shropshire and mid-Wales.
- 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: M48 motorway (via Chepstow) Target entity description: The M48 motorway is a major route in the United Kingdom that crosses the River Severn between England and Wales, providing access to Chepstow and surrounding areas.
-
A.
M5 motorway near Avonmouth
The M5 motorway near Avonmouth is a major section of the M5 in southwest England that serves as a key approach to Bristol and an important connection point between regional and national road networks.
-
B.
M40 motorway
The M40 motorway is a major English motorway linking London to Birmingham, serving as a key route through the Midlands and the southeast of England.
-
C.
M42 motorway
The M42 motorway is a major orbital route in the West Midlands of England that helps divert traffic around Birmingham and connects several key motorways, including the M5, M6, and M40.
-
D.
M6 motorway in England
The M6 motorway in England is a major north–south route linking the Midlands to the Scottish border, forming a key part of the United Kingdom’s primary western motorway corridor.
-
E.
M54 motorway
The M54 motorway is a key road in the West Midlands of England that links the M6 near Wolverhampton to Telford and provides an important route toward Shropshire and mid-Wales.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | motorway in the United Kingdom ⓘ |
| connects |
Gloucestershire
NERFINISHED
ⓘ
Monmouthshire NERFINISHED ⓘ |
| connectsTo | M4 motorway NERFINISHED ⓘ |
| country | United Kingdom ⓘ |
| crosses |
River Severn
NERFINISHED
ⓘ
River Wye NERFINISHED ⓘ Severn Estuary NERFINISHED ⓘ |
| crossesBorderBetween | England and Wales NERFINISHED ⓘ |
| hasBridge |
Severn Bridge
NERFINISHED
ⓘ
Wye Bridge NERFINISHED ⓘ |
| hasBridgeDesign | suspension bridge on Severn Bridge ⓘ |
| hasDirection | east–west ⓘ |
| hasJunction |
Junction 1
NERFINISHED
ⓘ
Junction 2 ⓘ |
| hasJunctionWith | M4 motorway NERFINISHED ⓘ |
| hasLaneConfiguration | dual carriageway ⓘ |
| hasServiceAreaNear | Severn View services NERFINISHED ⓘ |
| hasSpeedLimit | 70 mph ⓘ |
| hasStrategicFunction | alternative Severn crossing route ⓘ |
| hasStructure | viaducts over approach roads ⓘ |
| hasTerminusNear |
Aust
NERFINISHED
ⓘ
Magor NERFINISHED ⓘ |
| hasTollHistory | formerly tolled on Severn crossings ⓘ |
| isPartOfCorridor | London–South Wales route NERFINISHED ⓘ |
| locatedIn |
England
ⓘ
Wales ⓘ |
| maintainedBy |
National Highways
ⓘ
South Wales Trunk Road Agent NERFINISHED ⓘ |
| opened | 1966 ⓘ |
| openedAsPartOf | M4 motorway NERFINISHED ⓘ |
| parallelTo | Second Severn Crossing (M4) NERFINISHED ⓘ |
| partOf | British motorway network ⓘ |
| passesNear |
Chepstow Racecourse
NERFINISHED
ⓘ
Severn Estuary coastline NERFINISHED ⓘ |
| providesAccessTo | Chepstow NERFINISHED ⓘ |
| reclassifiedFrom | M4 motorway NERFINISHED ⓘ |
| region |
South Wales
NERFINISHED
ⓘ
southwest England ⓘ
surface form:
South West England
|
| roadNumber | M48 NERFINISHED ⓘ |
| roadType | primary route ⓘ |
| serves |
Chepstow area
ⓘ
Monmouthshire NERFINISHED ⓘ South Gloucestershire NERFINISHED ⓘ |
| tollRemoved | 2018 ⓘ |
| wasRenumbered | 1996 ⓘ |
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: M48 motorway (via Chepstow) Description of subject: The M48 motorway is a major route in the United Kingdom that crosses the River Severn between England and Wales, providing access to Chepstow and surrounding areas.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.