Amsterdam Metro line 52
E164211
Amsterdam Metro line 52, also known as the North–South Line, is a major rapid transit route in Amsterdam running between the city’s northern and southern districts via the central station.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T1394727 — 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: Amsterdam Metro line 52 Context triple: [Amsterdam Metro line 51, connectedWith, Amsterdam Metro line 52]
-
A.
Amsterdam Metro line 51
Amsterdam Metro line 51 was a former hybrid metro–light rail line in Amsterdam that connected the city center with the southern suburbs, notably serving areas like Amstelveen.
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B.
Amsterdam Metro line 53
Amsterdam Metro line 53 is a rapid transit line in Amsterdam that runs between Centraal Station and Gaasperplas, serving southeastern parts of the city.
-
C.
Amsterdam Metro line 50
Amsterdam Metro line 50 is an east–west metro route in Amsterdam that connects Isolatorweg to Gein, serving major transport hubs and residential areas across the city.
-
D.
Amsterdam Metro network
The Amsterdam Metro network is the rapid transit system serving Amsterdam and surrounding areas, consisting of multiple underground and surface lines that connect key neighborhoods, suburbs, and transport hubs across the city.
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E.
Amsterdam tram network
The Amsterdam tram network is an extensive urban light rail system that serves as a primary mode of public transportation throughout Amsterdam, connecting key squares, neighborhoods, and transit hubs.
- 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: Amsterdam Metro line 52 Target entity description: Amsterdam Metro line 52, also known as the North–South Line, is a major rapid transit route in Amsterdam running between the city’s northern and southern districts via the central station.
-
A.
Amsterdam Metro line 51
Amsterdam Metro line 51 was a former hybrid metro–light rail line in Amsterdam that connected the city center with the southern suburbs, notably serving areas like Amstelveen.
-
B.
Amsterdam Metro line 53
Amsterdam Metro line 53 is a rapid transit line in Amsterdam that runs between Centraal Station and Gaasperplas, serving southeastern parts of the city.
-
C.
Amsterdam Metro line 50
Amsterdam Metro line 50 is an east–west metro route in Amsterdam that connects Isolatorweg to Gein, serving major transport hubs and residential areas across the city.
-
D.
Amsterdam Metro network
The Amsterdam Metro network is the rapid transit system serving Amsterdam and surrounding areas, consisting of multiple underground and surface lines that connect key neighborhoods, suburbs, and transport hubs across the city.
-
E.
Amsterdam tram network
The Amsterdam tram network is an extensive urban light rail system that serves as a primary mode of public transportation throughout Amsterdam, connecting key squares, neighborhoods, and transit hubs.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport route ⓘ rapid transit line ⓘ |
| alsoKnownAs |
Noord/Zuidlijn
ⓘ
North–South Line ⓘ |
| color | blue ⓘ |
| connects |
Amsterdam-Centrum
ⓘ
surface form:
Amsterdam city centre
Amsterdam North ⓘ
surface form:
Amsterdam-Noord
Zuidas business district ⓘ
surface form:
Zuidas
|
| constructionCost | approximately €3.1 billion ⓘ |
| constructionStartDate | 2003 ⓘ |
| country | Netherlands ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareSystem | OV-chipkaart ⓘ |
| hasSection |
elevated northern section
ⓘ
surface or shallow southern section ⓘ underground city-centre section ⓘ |
| hasType | underground metro line ⓘ |
| lineLength | approximately 9.7 km ⓘ |
| lineNumber | 52 ⓘ |
| locatedIn |
Amsterdam
ⓘ
Netherlands ⓘ North Holland ⓘ |
| numberOfStations | 8 ⓘ |
| openingDate | 2018-07-22 ⓘ |
| operator | GVB ⓘ |
| ownedBy | Municipality of Amsterdam ⓘ |
| partOf |
Amsterdam Metro network
ⓘ
surface form:
Amsterdam Metro
|
| passesUnder |
IJ waterway
ⓘ
historic city centre of Amsterdam ⓘ |
| purpose | improve north–south connectivity in Amsterdam ⓘ |
| rollingStock |
M5 metro trains
ⓘ
Alstom Metropolis ⓘ
surface form:
M6 metro trains
|
| routeDirection | north–south ⓘ |
| serves |
Amsterdam Centraal
ⓘ
surface form:
Amsterdam Centraal railway station
Amsterdam Zuid station ⓘ
surface form:
Amsterdam Zuid railway station
|
| system | Amsterdam Metro network ⓘ |
| terminus |
Noord station
ⓘ
Amsterdam Zuid station ⓘ
surface form:
Zuid station
|
| trackGauge | standard gauge ⓘ |
| via |
Amsterdam Centraal
ⓘ
surface form:
Amsterdam Centraal station
De Pijp metro station ⓘ
surface form:
De Pijp station
Europaplein station ⓘ Noorderpark station ⓘ Rokin station NERFINISHED ⓘ Amsterdam Centraal ⓘ
surface form:
Station Amsterdam Centraal
Noord bus station ⓘ
surface form:
Station Noord
Noord – Zuid (Station Zuid) ⓘ
surface form:
Station Zuid
Vijzelgracht metro station ⓘ
surface form:
Vijzelgracht station
|
| zone | GVB Amsterdam urban area ⓘ |
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: Amsterdam Metro line 52 Description of subject: Amsterdam Metro line 52, also known as the North–South Line, is a major rapid transit route in Amsterdam running between the city’s northern and southern districts via the central station.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Amsterdam Metro North–South line
subject surface form:
De Pijp
this entity surface form:
North–South Line (Amsterdam Metro)
this entity surface form:
Amsterdam Metro Line 52
this entity surface form:
Amsterdam Metro Line 52
this entity surface form:
North–South Line of Amsterdam Metro
this entity surface form:
Amsterdam Metro Line 52 (bus and tram connections, not direct)