Metro line 50
E112313
Metro line 50 is a rapid transit line in Amsterdam that runs in an east–west arc connecting several major residential and business districts without passing through the historic city center.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Metro line 50 canonical | 3 |
| Metro Line 50 | 2 |
| Line 50 (Isolatorweg – Gein) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T951103 — 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: Metro line 50 Context triple: [Amsterdam Zuid, metroLines, Metro line 50]
-
A.
Metro Line 6
Metro Line 6 is a line of the Mexico City Metro system that serves the northern part of the city, including the Gustavo A. Madero borough.
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B.
Metrobus Line 5
Metrobus Line 5 is a bus rapid transit route in Mexico City that serves the borough of Venustiano Carranza and connects it with other key areas of the city.
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C.
Metro Line 3
Metro Line 3 is a major Mexico City Metro route that runs north–south across the city, connecting key residential and commercial areas including the Gustavo A. Madero borough.
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D.
Metro A Line
The Metro A Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the region’s Metro Rail system.
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E.
Metrobus Line 4
Metrobus Line 4 is a Mexico City Metrobús bus rapid transit route that serves central areas including the Venustiano Carranza borough and provides key connections to the city’s historic center and airport.
- 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: Metro line 50 Target entity description: Metro line 50 is a rapid transit line in Amsterdam that runs in an east–west arc connecting several major residential and business districts without passing through the historic city center.
-
A.
Metro Line 6
Metro Line 6 is a line of the Mexico City Metro system that serves the northern part of the city, including the Gustavo A. Madero borough.
-
B.
Metrobus Line 5
Metrobus Line 5 is a bus rapid transit route in Mexico City that serves the borough of Venustiano Carranza and connects it with other key areas of the city.
-
C.
Metro Line 3
Metro Line 3 is a major Mexico City Metro route that runs north–south across the city, connecting key residential and commercial areas including the Gustavo A. Madero borough.
-
D.
Metro A Line
The Metro A Line is a light rail line in Los Angeles County that runs between downtown Los Angeles and Long Beach as part of the region’s Metro Rail system.
-
E.
Metrobus Line 4
Metrobus Line 4 is a Mexico City Metrobús bus rapid transit route that serves central areas including the Venustiano Carranza borough and provides key connections to the city’s historic center and airport.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
Amsterdam Metro line
ⓘ
rapid transit line ⓘ |
| alsoKnownAs | Ringlijn ⓘ |
| connects |
business districts in Amsterdam
ⓘ
residential districts in Amsterdam ⓘ |
| country | Netherlands ⓘ |
| doesNotServe | historic city center of Amsterdam ⓘ |
| electrification | third rail ⓘ |
| fareSystem | OV-chipkaart ⓘ |
| gauge | standard gauge ⓘ |
| hasColor | green ⓘ |
| hasRollingStock |
Amsterdam Metro M4 series
ⓘ
Amsterdam Metro M5 series ⓘ |
| lineNumber | 50 ⓘ |
| locatedIn | Amsterdam ⓘ |
| openingDate | 1997 ⓘ |
| operatedBy | GVB ⓘ |
| partOf | public transport network of Amsterdam ⓘ |
| region | North Holland ⓘ |
| routeCharacteristic |
does not pass through Amsterdam Centraal
ⓘ
functions as an orbital line ⓘ |
| servicePattern | east–west arc ⓘ |
| status | operational ⓘ |
| system |
Amsterdam Metro
ⓘ
linked to:
Amsterdam Metro network
|
| transportType |
metro
ⓘ
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: Metro line 50 Description of subject: Metro line 50 is a rapid transit line in Amsterdam that runs in an east–west arc connecting several major residential and business districts without passing through the historic city center.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Metro line 50
linked to: Metro line 50
linked to: Metro line 50