M2 motorway (Johannesburg)
E877400
The M2 motorway in Johannesburg is a major east–west urban freeway that runs along the southern edge of the city centre, linking key suburbs and connecting with several primary routes in the metropolitan road network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M2 motorway (Johannesburg) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10653866 — 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: M2 motorway (Johannesburg) Context triple: [M1 motorway (Johannesburg), hasJunctionWith, M2 motorway (Johannesburg)]
-
A.
M1 motorway (Johannesburg)
The M1 motorway in Johannesburg is a major north–south freeway that connects the city center with key suburbs and forms part of one of the main arterial routes through the Greater Johannesburg area.
-
B.
M275 motorway
The M275 motorway is a short spur road in Hampshire, England, providing the main motorway access from the M27 to the city of Portsmouth and Portsea Island.
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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.
M602 motorway
The M602 motorway is a short urban motorway in Greater Manchester, England, linking the M60 and M62 to central Salford and providing a key route into Manchester from the west.
-
E.
M27 motorway
The M27 motorway is a major road in southern England that runs east–west along the south coast, linking the New Forest area with Southampton and Portsmouth.
- 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: M2 motorway (Johannesburg) Target entity description: The M2 motorway in Johannesburg is a major east–west urban freeway that runs along the southern edge of the city centre, linking key suburbs and connecting with several primary routes in the metropolitan road network.
-
A.
M1 motorway (Johannesburg)
The M1 motorway in Johannesburg is a major north–south freeway that connects the city center with key suburbs and forms part of one of the main arterial routes through the Greater Johannesburg area.
-
B.
M275 motorway
The M275 motorway is a short spur road in Hampshire, England, providing the main motorway access from the M27 to the city of Portsmouth and Portsea Island.
-
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.
M602 motorway
The M602 motorway is a short urban motorway in Greater Manchester, England, linking the M60 and M62 to central Salford and providing a key route into Manchester from the west.
-
E.
M27 motorway
The M27 motorway is a major road in southern England that runs east–west along the south coast, linking the New Forest area with Southampton and Portsmouth.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
metropolitan route in Johannesburg
ⓘ
urban freeway ⓘ |
| accessControl | limited-access highway ⓘ |
| connectsTo |
M1 motorway (Johannesburg)
NERFINISHED
ⓘ
N3 Eastern Bypass NERFINISHED ⓘ R24 route (South Africa) NERFINISHED ⓘ |
| country | South Africa ⓘ |
| direction | east–west ⓘ |
| function |
bypasses surface streets in Johannesburg CBD
ⓘ
links eastern and western suburbs of Johannesburg ⓘ |
| hasJunctionWith |
M1 motorway (Johannesburg)
NERFINISHED
ⓘ
N3 Eastern Bypass NERFINISHED ⓘ R24 route (South Africa) NERFINISHED ⓘ |
| hasLaneConfiguration | multiple lanes in each direction ⓘ |
| hasStructureType |
elevated sections
ⓘ
interchanges ⓘ viaducts ⓘ |
| locatedIn |
Gauteng
ⓘ
Johannesburg, South Africa ⓘ
surface form:
Johannesburg
|
| maintainedBy |
Gauteng Department of Roads and Transport
NERFINISHED
ⓘ
Johannesburg Roads Agency NERFINISHED ⓘ |
| partOf |
Johannesburg Inner Ring Road system
NERFINISHED
ⓘ
Johannesburg metropolitan road network NERFINISHED ⓘ |
| partOfNetwork | Johannesburg M-route system NERFINISHED ⓘ |
| passesNear |
Germiston
NERFINISHED
ⓘ
Jeppestown NERFINISHED ⓘ Kensington, Johannesburg NERFINISHED ⓘ Newtown, Johannesburg NERFINISHED ⓘ |
| passesThrough | Johannesburg CBD NERFINISHED ⓘ |
| roadNumber | M2 NERFINISHED ⓘ |
| roadType | dual carriageway ⓘ |
| runsAlong | southern edge of Johannesburg city centre ⓘ |
| serves | Johannesburg central business district NERFINISHED ⓘ |
| tollRoad | false ⓘ |
| urban | true ⓘ |
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: M2 motorway (Johannesburg) Description of subject: The M2 motorway in Johannesburg is a major east–west urban freeway that runs along the southern edge of the city centre, linking key suburbs and connecting with several primary routes in the metropolitan road network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.