Finnfast subsea tunnel
E326708
The Finnfast subsea tunnel is an undersea road tunnel system in Rogaland, Norway, that connects the island of Finnøy and surrounding islands to the mainland.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Finnfast subsea tunnel canonical | 1 |
| Finnfast undersea tunnel system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3102021 — 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: Finnfast subsea tunnel Context triple: [Finnøy, hasRoadConnection, Finnfast subsea tunnel]
-
A.
Tromsøysund Tunnel
Tromsøysund Tunnel is an undersea road tunnel in northern Norway that connects the island city of Tromsø to the mainland.
-
B.
Maastunnel
Maastunnel is a historic traffic tunnel in Rotterdam, the Netherlands, carrying road, bicycle, and pedestrian traffic beneath the Nieuwe Maas river.
-
C.
Piet Hein Tunnel
The Piet Hein Tunnel is a major road and tram tunnel in Amsterdam that connects the city center with the Eastern Docklands and the A10 ring road.
-
D.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
-
E.
Westerscheldetunnel
The Westerscheldetunnel is a major road tunnel in the Netherlands that runs beneath the Western Scheldt estuary, providing a key fixed link between the northern and southern parts of Zeeland.
- 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: Finnfast subsea tunnel Target entity description: The Finnfast subsea tunnel is an undersea road tunnel system in Rogaland, Norway, that connects the island of Finnøy and surrounding islands to the mainland.
-
A.
Tromsøysund Tunnel
Tromsøysund Tunnel is an undersea road tunnel in northern Norway that connects the island city of Tromsø to the mainland.
-
B.
Maastunnel
Maastunnel is a historic traffic tunnel in Rotterdam, the Netherlands, carrying road, bicycle, and pedestrian traffic beneath the Nieuwe Maas river.
-
C.
Piet Hein Tunnel
The Piet Hein Tunnel is a major road and tram tunnel in Amsterdam that connects the city center with the Eastern Docklands and the A10 ring road.
-
D.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
-
E.
Westerscheldetunnel
The Westerscheldetunnel is a major road tunnel in the Netherlands that runs beneath the Western Scheldt estuary, providing a key fixed link between the northern and southern parts of Zeeland.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
subsea road tunnel system
ⓘ
undersea road tunnel ⓘ |
| connectsTo |
Finnøy
ⓘ
Hanasand ⓘ Ladstein ⓘ Talgje ⓘ mainland Norway ⓘ |
| country | Norway ⓘ |
| hasAccess | motor vehicles ⓘ |
| hasEndPoint | mainland at Hanasand ⓘ |
| hasLanguageOfName | Norwegian ⓘ |
| hasStartPoint | Finnøy ⓘ |
| hasToll | true ⓘ |
| infrastructureType | subsea tunnel ⓘ |
| isInArchipelago |
Finnøy
ⓘ
surface form:
Finnøy archipelago
|
| isPartOf | transport infrastructure of Rogaland ⓘ |
| locatedIn |
Rogaland
ⓘ
Stavanger municipality ⓘ |
| locatedUnder |
Finnøyfjorden
ⓘ
Talgjefjorden ⓘ sea ⓘ |
| namedAfter | Finnøy ⓘ |
| openedForTraffic | 2009 ⓘ |
| openingDate | 2009 ⓘ |
| partOf | Norwegian national road network ⓘ |
| purpose |
fixed link between islands and mainland
ⓘ
road transport ⓘ |
| regionServed | Ryfylke ⓘ |
| replacedTransportMode | ferry connection ⓘ |
| roadType | road tunnel ⓘ |
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: Finnfast subsea tunnel Description of subject: The Finnfast subsea tunnel is an undersea road tunnel system in Rogaland, Norway, that connects the island of Finnøy and surrounding islands to the mainland.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Finnfast undersea tunnel system