Port Harcourt–Owerri Road
E338080
Port Harcourt–Owerri Road is a major highway in southern Nigeria that links the city of Port Harcourt with Owerri, facilitating regional transport and commerce.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Port Harcourt–Owerri Road canonical | 2 |
| Port Harcourt–Owerri Road corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3213545 — 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: Port Harcourt–Owerri Road Context triple: [Obio-Akpor Local Government Area, hasRoadConnection, Port Harcourt–Owerri Road]
-
A.
Abuja–Kaduna expressway
The Abuja–Kaduna expressway is a major Nigerian highway linking the capital city Abuja with Kaduna, serving as a key transport corridor in the country’s north-central region.
-
B.
Lagos–Badagry Expressway
The Lagos–Badagry Expressway is a major international highway in southwestern Nigeria that connects Lagos to the border town of Seme and onward to Benin, serving as a key trade and transport corridor in West Africa.
-
C.
Lagos–Ibadan Expressway corridor
The Lagos–Ibadan Expressway corridor is a major Nigerian transportation artery linking Lagos to Ibadan and serving as a critical economic and commuter route in the southwest region.
-
D.
Ikorodu Road
Ikorodu Road is a major expressway in Lagos, Nigeria, serving as a key transport artery linking the suburb of Ikorodu with the city’s central areas.
-
E.
Lekki–Epe Expressway
The Lekki–Epe Expressway is a major arterial highway in Lagos State, Nigeria, connecting the Lekki Peninsula to Epe and serving as a key route for commuters and regional development.
- 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: Port Harcourt–Owerri Road Target entity description: Port Harcourt–Owerri Road is a major highway in southern Nigeria that links the city of Port Harcourt with Owerri, facilitating regional transport and commerce.
-
A.
Abuja–Kaduna expressway
The Abuja–Kaduna expressway is a major Nigerian highway linking the capital city Abuja with Kaduna, serving as a key transport corridor in the country’s north-central region.
-
B.
Lagos–Badagry Expressway
The Lagos–Badagry Expressway is a major international highway in southwestern Nigeria that connects Lagos to the border town of Seme and onward to Benin, serving as a key trade and transport corridor in West Africa.
-
C.
Lagos–Ibadan Expressway corridor
The Lagos–Ibadan Expressway corridor is a major Nigerian transportation artery linking Lagos to Ibadan and serving as a critical economic and commuter route in the southwest region.
-
D.
Ikorodu Road
Ikorodu Road is a major expressway in Lagos, Nigeria, serving as a key transport artery linking the suburb of Ikorodu with the city’s central areas.
-
E.
Lekki–Epe Expressway
The Lekki–Epe Expressway is a major arterial highway in Lagos State, Nigeria, connecting the Lekki Peninsula to Epe and serving as a key route for commuters and regional development.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
highway
ⓘ
road ⓘ transport infrastructure ⓘ |
| connects |
Owerri
ⓘ
Port Harcourt ⓘ |
| country | Nigeria ⓘ |
| facilitates |
commerce
ⓘ
regional transport ⓘ |
| hasRole | economic artery in southern Nigeria ⓘ |
| importance | major regional corridor ⓘ |
| languageOfName | English ⓘ |
| locatedIn | southern Nigeria ⓘ |
| locatedOnContinent | Africa ⓘ |
| namedAfter |
Owerri
ⓘ
Port Harcourt ⓘ |
| partOf | Nigerian road network ⓘ |
| passesThrough |
Imo State
NERFINISHED
ⓘ
Rivers State ⓘ |
| regionServed |
Imo State
NERFINISHED
ⓘ
Rivers State ⓘ |
| roadSurface | paved ⓘ |
| roadType | intercity highway ⓘ |
| supports |
movement of goods
ⓘ
movement of people ⓘ trade between Port Harcourt and Owerri ⓘ |
| terminusA | Port Harcourt ⓘ |
| terminusB | Owerri ⓘ |
| usedFor |
freight transport
ⓘ
passenger 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: Port Harcourt–Owerri Road Description of subject: Port Harcourt–Owerri Road is a major highway in southern Nigeria that links the city of Port Harcourt with Owerri, facilitating regional transport and commerce.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Port Harcourt–Owerri Road corridor