Ofoten Line
E179560
The Ofoten Line is a Norwegian railway line in northern Scandinavia primarily used to transport iron ore from Sweden to the ice-free port of Narvik on the Ofotfjord.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ofoten Line canonical | 9 |
| Ofotbanen railway | 2 |
| Ofotbanen railway line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1573714 — 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: Ofoten Line Context triple: [Narvik, terminusOf, Ofoten Line]
-
A.
Dovre Line
The Dovre Line is a major Norwegian railway route that connects Oslo with Trondheim, running through the scenic Gudbrandsdalen valley and over the Dovrefjell mountain plateau.
-
B.
Gjøvik Line
The Gjøvik Line is a Norwegian railway route connecting Oslo with the town of Gjøvik through the inland districts north of the capital.
-
C.
Kongsvinger Line
The Kongsvinger Line is a Norwegian railway route running east from Oslo toward the Swedish border, serving both passenger and freight traffic.
-
D.
Arendal Line
The Arendal Line is a Norwegian railway route that connects the coastal town of Arendal to the national rail network.
-
E.
Drammen Line
The Drammen Line is a major Norwegian railway route connecting Oslo with the city of Drammen and serving as an important commuter and intercity corridor in the Oslo region.
- 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: Ofoten Line Target entity description: The Ofoten Line is a Norwegian railway line in northern Scandinavia primarily used to transport iron ore from Sweden to the ice-free port of Narvik on the Ofotfjord.
-
A.
Dovre Line
The Dovre Line is a major Norwegian railway route that connects Oslo with Trondheim, running through the scenic Gudbrandsdalen valley and over the Dovrefjell mountain plateau.
-
B.
Gjøvik Line
The Gjøvik Line is a Norwegian railway route connecting Oslo with the town of Gjøvik through the inland districts north of the capital.
-
C.
Kongsvinger Line
The Kongsvinger Line is a Norwegian railway route running east from Oslo toward the Swedish border, serving both passenger and freight traffic.
-
D.
Arendal Line
The Arendal Line is a Norwegian railway route that connects the coastal town of Arendal to the national rail network.
-
E.
Drammen Line
The Drammen Line is a major Norwegian railway route connecting Oslo with the city of Drammen and serving as an important commuter and intercity corridor in the Oslo region.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| cargo |
general freight
ⓘ
iron ore ⓘ |
| climaticCondition | subarctic climate area ⓘ |
| connectedPort | Port of Narvik ⓘ |
| connectedTo | Swedish rail network via Iron Ore Line ⓘ |
| connectsTo | Iron Ore Line ⓘ |
| constructionStart | late 19th century ⓘ |
| country | Norway ⓘ |
| crosses | Norway–Sweden border vicinity ⓘ |
| electrification | 15 kV 16.7 Hz AC overhead line ⓘ |
| electrifiedSince | early 20th century ⓘ |
| endpointFeature | ice-free port of Narvik ⓘ |
| follows | Ofotfjord ⓘ |
| freightOperator |
CargoNet
ⓘ
LKAB Malmtrafik ⓘ |
| gauge | standard gauge ⓘ |
| hasStation |
Bjørnfjell Station
ⓘ
Katterat Station NERFINISHED ⓘ Narvik Station ⓘ
linked to:
Narvik railway station
Rombak Station NERFINISHED ⓘ Straumsnes Station ⓘ |
| hasStructure |
bridges
ⓘ
tunnels ⓘ |
| hasTrafficType |
heavy freight
ⓘ
passenger ⓘ |
| length | about 43 km ⓘ |
| locatedIn | Northern Norway ⓘ |
| locatedOn | Scandinavian Peninsula ⓘ |
| namedAfter | Ofoten ⓘ |
| notableFeature |
scenic mountain landscape
ⓘ
steep gradients ⓘ |
| opened | 1902 ⓘ |
| operator | Bane NOR ⓘ |
| owner | Bane NOR ⓘ |
| partOf | iron ore railway system between Kiruna and Narvik ⓘ |
| passengerOperator |
SJ Norge
ⓘ
Vy Tog ⓘ |
| passesThrough |
Narvik municipality
ⓘ
linked to:
Narvik Municipality
|
| primaryUse | iron ore transport ⓘ |
| regionServed | Nordland county ⓘ |
| strategicImportance | export route for Swedish iron ore ⓘ |
| terminus |
Narvik
ⓘ
Riksgränsen ⓘ |
| trackConfiguration | single track ⓘ |
| usedBy | heavy ore trains ⓘ |
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: Ofoten Line Description of subject: The Ofoten Line is a Norwegian railway line in northern Scandinavia primarily used to transport iron ore from Sweden to the ice-free port of Narvik on the Ofotfjord.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ofoten Line
linked to: Ofoten Line
linked to: Ofoten Line