Oslo Metro common tunnel
E607049
The Oslo Metro common tunnel is the central underground trunk line in Oslo’s rapid transit system, carrying multiple metro lines through the city center.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Oslo Metro common tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5838320 — 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: Oslo Metro common tunnel Context triple: [T1300 train (historical), operatedOnLine, Oslo Metro common tunnel]
-
A.
Oslo Metro Ring Line
The Oslo Metro Ring Line is a circular rapid transit route in Oslo’s metro system that connects several key residential and commercial districts around the city center.
-
B.
Oslo Metro
The Oslo Metro is the rapid transit system serving Norway's capital, providing high-frequency urban and suburban rail connections across the Oslo metropolitan area.
-
C.
Oslo Metro Line 1
Oslo Metro Line 1 is one of the lines in the Oslo Metro system, running from the city center through several residential districts to the hilly Holmenkollen area and the Frognerseteren terminus.
-
D.
Oslo Metro Line 2
Oslo Metro Line 2 is one of the main rapid transit lines in the Oslo Metro system, running east–west across the city and connecting central Oslo with several suburban areas.
-
E.
Oslo Metro Line 3
Oslo Metro Line 3 is one of the main rapid transit lines in Oslo, Norway, running through the city center and connecting several eastern and western suburbs.
- 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: Oslo Metro common tunnel Target entity description: The Oslo Metro common tunnel is the central underground trunk line in Oslo’s rapid transit system, carrying multiple metro lines through the city center.
-
A.
Oslo Metro Ring Line
The Oslo Metro Ring Line is a circular rapid transit route in Oslo’s metro system that connects several key residential and commercial districts around the city center.
-
B.
Oslo Metro
The Oslo Metro is the rapid transit system serving Norway's capital, providing high-frequency urban and suburban rail connections across the Oslo metropolitan area.
-
C.
Oslo Metro Line 1
Oslo Metro Line 1 is one of the lines in the Oslo Metro system, running from the city center through several residential districts to the hilly Holmenkollen area and the Frognerseteren terminus.
-
D.
Oslo Metro Line 2
Oslo Metro Line 2 is one of the main rapid transit lines in the Oslo Metro system, running east–west across the city and connecting central Oslo with several suburban areas.
-
E.
Oslo Metro Line 3
Oslo Metro Line 3 is one of the main rapid transit lines in Oslo, Norway, running through the city center and connecting several eastern and western suburbs.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
metro tunnel
ⓘ
railway infrastructure ⓘ |
| category |
Rail transport in Oslo
ⓘ
Underground rapid transit in Norway ⓘ |
| character | underground ⓘ |
| connectsLine |
Oslo Metro Line 1
NERFINISHED
ⓘ
Oslo Metro Line 2 NERFINISHED ⓘ Oslo Metro Line 3 NERFINISHED ⓘ Oslo Metro Line 4 NERFINISHED ⓘ Oslo Metro Line 5 NERFINISHED ⓘ |
| country | Norway ⓘ |
| electrification | third rail ⓘ |
| endPoint | Tøyen station NERFINISHED ⓘ |
| function | central underground trunk line ⓘ |
| hasLanguage | Norwegian NERFINISHED ⓘ |
| hasStation |
Grønland station
NERFINISHED
ⓘ
Jernbanetorget station NERFINISHED ⓘ Majorstuen station NERFINISHED ⓘ Nationaltheatret station NERFINISHED ⓘ Stortinget station NERFINISHED ⓘ Tøyen station NERFINISHED ⓘ |
| hasTraffic | high passenger volume ⓘ |
| isCentralSectionOf | Oslo Metro network NERFINISHED ⓘ |
| isKeyInfrastructureFor | public transport in Oslo ⓘ |
| isUsedBy | all Oslo Metro lines except Kolsås branch beyond common section ⓘ |
| localName |
fellesstrekningen
ⓘ
fellestunnelen NERFINISHED ⓘ |
| locatedIn |
Norway
ⓘ
Oslo ⓘ |
| operator | Sporveien T-banen NERFINISHED ⓘ |
| owner | Sporveien NERFINISHED ⓘ |
| partOf | Oslo Metro NERFINISHED ⓘ |
| passesUnder | Oslo city center NERFINISHED ⓘ |
| role | carries multiple metro lines through the city center ⓘ |
| safetySystem | metro signalling system ⓘ |
| serves | Oslo city center NERFINISHED ⓘ |
| startPoint | Majorstuen station NERFINISHED ⓘ |
| system | Oslo Metro NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| uses | rapid transit ⓘ |
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: Oslo Metro common tunnel Description of subject: The Oslo Metro common tunnel is the central underground trunk line in Oslo’s rapid transit system, carrying multiple metro lines through the city center.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.