North–South Line
E638327
The North–South Line is a major Amsterdam Metro route that runs largely underground, connecting the city’s northern districts with the center and the south.
All labels observed (1)
| Label | Occurrences |
|---|---|
| North–South Line canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T7060855 — 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: North–South Line Context triple: [Amsterdam Metro line 52, alsoKnownAs, North–South Line]
-
A.
East–West Line
The East–West Line was the original name for what is now MARTA’s Blue Line, a major rapid transit route serving the Atlanta metropolitan area.
-
B.
Northeast Line
The Northeast Line, now known as MARTA's Gold Line, is a rapid transit route serving key northeastern suburbs and neighborhoods of Atlanta, Georgia.
-
C.
Northwest–East Line
The Northwest–East Line is the primary rapid transit route of Baltimore's Metro SubwayLink system, running across the city from the northwest suburbs toward the eastern side.
-
D.
MRT Blue Line
The MRT Blue Line is a major rapid transit route in Bangkok’s Metropolitan Rapid Transit system, serving as one of the city’s primary underground and elevated rail corridors.
-
E.
MRT Orange Line
The MRT Orange Line is a rapid transit route in Bangkok’s Mass Rapid Transit system designed to connect key eastern and western parts of the city.
- 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: North–South Line Target entity description: The North–South Line is a major Amsterdam Metro route that runs largely underground, connecting the city’s northern districts with the center and the south.
-
A.
East–West Line
The East–West Line was the original name for what is now MARTA’s Blue Line, a major rapid transit route serving the Atlanta metropolitan area.
-
B.
Northeast Line
The Northeast Line, now known as MARTA's Gold Line, is a rapid transit route serving key northeastern suburbs and neighborhoods of Atlanta, Georgia.
-
C.
Northwest–East Line
The Northwest–East Line is the primary rapid transit route of Baltimore's Metro SubwayLink system, running across the city from the northwest suburbs toward the eastern side.
-
D.
MRT Blue Line
The MRT Blue Line is a major rapid transit route in Bangkok’s Metropolitan Rapid Transit system, serving as one of the city’s primary underground and elevated rail corridors.
-
E.
MRT Orange Line
The MRT Orange Line is a rapid transit route in Bangkok’s Mass Rapid Transit system designed to connect key eastern and western parts of the city.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport infrastructure ⓘ |
| cityServed | Amsterdam NERFINISHED ⓘ |
| connectsArea |
Amsterdam city centre
NERFINISHED
ⓘ
Amsterdam-Noord NERFINISHED ⓘ Amsterdam-Zuid NERFINISHED ⓘ |
| connectsTo |
Amsterdam Centraal railway station
NERFINISHED
ⓘ
Amsterdam Zuid railway station NERFINISHED ⓘ |
| constructionStartDate | 2003 ⓘ |
| country | Netherlands ⓘ |
| crosses | IJ NERFINISHED ⓘ |
| electrification | 750 V DC third rail ⓘ |
| endStation | Zuid station NERFINISHED ⓘ |
| fareSystem | OV-chipkaart NERFINISHED ⓘ |
| hasServiceFrequency | high-frequency urban metro service ⓘ |
| hasStation |
Centraal Station
NERFINISHED
ⓘ
De Pijp NERFINISHED ⓘ Europaplein NERFINISHED ⓘ Noord NERFINISHED ⓘ Noorderpark NERFINISHED ⓘ Rokin NERFINISHED ⓘ Vijzelgracht NERFINISHED ⓘ Zuid NERFINISHED ⓘ |
| hasTunnelSection |
under Amsterdam city centre
ⓘ
under the IJ ⓘ |
| lineColor | blue ⓘ |
| lineNumber | 52 ⓘ |
| locatedIn |
Amsterdam
ⓘ
Netherlands ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 2018-07-22 ⓘ |
| operator | GVB NERFINISHED ⓘ |
| ownedBy | Municipality of Amsterdam NERFINISHED ⓘ |
| partOf | Amsterdam Metro NERFINISHED ⓘ |
| publicTransportType | metro ⓘ |
| routeDirection | north–south ⓘ |
| runsMostly | underground ⓘ |
| servesDistrict |
Amsterdam city centre
NERFINISHED
ⓘ
Amsterdam-Noord NERFINISHED ⓘ Amsterdam-Zuid NERFINISHED ⓘ |
| startStation | Noord station NERFINISHED ⓘ |
| terminus |
Noord station
NERFINISHED
ⓘ
Zuid station NERFINISHED ⓘ |
| trackGauge | 1435 mm ⓘ |
| usesRollingStock |
M5 metro trains
NERFINISHED
ⓘ
M6 metro trains NERFINISHED ⓘ |
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: North–South Line Description of subject: The North–South Line is a major Amsterdam Metro route that runs largely underground, connecting the city’s northern districts with the center and the south.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.