Third Mainland Bridge
E55721
Third Mainland Bridge is a major highway bridge in Lagos, Nigeria, and one of the longest bridges in Africa, connecting Lagos Island to the mainland and serving as a critical transportation artery in the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Third Mainland Bridge canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T441313 — 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: Third Mainland Bridge Context triple: [Lagos, hasLandmark, Third Mainland Bridge]
-
A.
Bay Bridge
The Bay Bridge is a major suspension bridge complex in the San Francisco Bay Area that connects San Francisco and Oakland across San Francisco Bay.
-
B.
Vasco da Gama Bridge
The Vasco da Gama Bridge is a modern cable-stayed bridge in Lisbon, Portugal, and one of the longest bridges in Europe, spanning the Tagus River.
-
C.
St. Johns Bridge
St. Johns Bridge is a historic steel suspension bridge in Portland, Oregon, noted for its striking Gothic-style towers and scenic span over the Willamette River.
-
D.
Victoria Falls Bridge
The Victoria Falls Bridge is a historic steel arch bridge spanning the Zambezi River between Zambia and Zimbabwe, renowned for its dramatic views of Victoria Falls and as a popular site for adventure activities like bungee jumping.
-
E.
Crimean Bridge
The Crimean Bridge is a massive road-and-rail bridge spanning the Kerch Strait, linking mainland Russia with the Crimean Peninsula and serving as a key strategic and political infrastructure project.
- 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: Third Mainland Bridge Target entity description: Third Mainland Bridge is a major highway bridge in Lagos, Nigeria, and one of the longest bridges in Africa, connecting Lagos Island to the mainland and serving as a critical transportation artery in the city.
-
A.
Bay Bridge
The Bay Bridge is a major suspension bridge complex in the San Francisco Bay Area that connects San Francisco and Oakland across San Francisco Bay.
-
B.
Vasco da Gama Bridge
The Vasco da Gama Bridge is a modern cable-stayed bridge in Lisbon, Portugal, and one of the longest bridges in Europe, spanning the Tagus River.
-
C.
St. Johns Bridge
St. Johns Bridge is a historic steel suspension bridge in Portland, Oregon, noted for its striking Gothic-style towers and scenic span over the Willamette River.
-
D.
Victoria Falls Bridge
The Victoria Falls Bridge is a historic steel arch bridge spanning the Zambezi River between Zambia and Zimbabwe, renowned for its dramatic views of Victoria Falls and as a popular site for adventure activities like bungee jumping.
-
E.
Crimean Bridge
The Crimean Bridge is a massive road-and-rail bridge spanning the Kerch Strait, linking mainland Russia with the Crimean Peninsula and serving as a key strategic and political infrastructure project.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
highway bridge ⓘ road bridge ⓘ |
| accessRestriction | motorized traffic only ⓘ |
| carries |
buses
ⓘ
commercial vehicles ⓘ motor vehicles ⓘ private cars ⓘ |
| cityServed | Lagos ⓘ |
| connects |
Lagos Island
ⓘ
Lagos Mainland ⓘ
linked to:
Lagos
|
| continent | Africa ⓘ |
| country | Nigeria ⓘ |
| crosses | Lagos Lagoon ⓘ |
| function |
urban commuting
ⓘ
vehicular traffic ⓘ |
| governedBy |
Federal Government of Nigeria
ⓘ
linked to:
Government of Nigeria
Lagos State Government ⓘ
linked to:
Lagos State
|
| hasIssue |
peak-hour traffic jams
ⓘ
traffic congestion ⓘ |
| hasToll | no ⓘ |
| importance |
critical link between Lagos Island and mainland
ⓘ
major transportation artery in Lagos ⓘ one of the longest bridges in Africa ⓘ |
| isPartOf |
Lagos road network
ⓘ
Lagos–Ibadan Expressway corridor ⓘ |
| laneCount | multiple lanes ⓘ |
| locatedIn |
Lagos
ⓘ
Lagos State ⓘ |
| locatedInBodyOfWater | Lagos Lagoon ⓘ |
| maintenance | periodic closure for repairs ⓘ |
| near |
Lagos Island business district
ⓘ
linked to:
Lagos Island
Oworonshoki ⓘ Yaba ⓘ |
| notableFor |
length
ⓘ
role in Lagos transportation system ⓘ strategic economic importance ⓘ |
| regionServed |
Southwest Nigeria
ⓘ
linked to:
Western Nigeria
|
| roadTypeCarried |
expressway
ⓘ
urban highway ⓘ |
| role | primary link between island and mainland residential areas ⓘ |
| safetyConcern | periodic structural assessments ⓘ |
| structureType |
concrete bridge
ⓘ
viaduct ⓘ |
| transportModeSupported | road transport ⓘ |
| urbanContext | megacity of Lagos ⓘ |
| usedFor |
daily commuting
ⓘ
inter-city travel ⓘ intra-city travel ⓘ |
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: Third Mainland Bridge Description of subject: Third Mainland Bridge is a major highway bridge in Lagos, Nigeria, and one of the longest bridges in Africa, connecting Lagos Island to the mainland and serving as a critical transportation artery in the city.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.