Ringlijn
E484749
Ringlijn is the common name for Amsterdam Metro line 50, a rapid transit route that forms a partial ring around the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ringlijn canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4998755 — 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: Ringlijn Context triple: [Metro line 50, alsoKnownAs, Ringlijn]
-
A.
Ringbahn
The Ringbahn is Berlin’s circular urban rail line that encircles the inner city and serves as a major hub for the Berlin S-Bahn network.
-
B.
Gribskov Line
The Gribskov Line is a Danish regional railway line in North Zealand that connects Hillerød with several coastal and rural towns, serving as an important local transport route and tourist line.
-
C.
Bridge Line
Bridge Line was a former rapid transit service in the Philadelphia–Camden area that operated across the Benjamin Franklin Bridge before being replaced and expanded by the PATCO Speedline.
-
D.
Tarka Line
The Tarka Line is a scenic rural railway route in Devon, England, running between Exeter and Barnstaple through the countryside associated with Henry Williamson’s novel "Tarka the Otter."
-
E.
Marshlink Line
The Marshlink Line is a regional railway route in Southeast England that runs across the Romney Marsh, connecting Ashford International with Hastings and serving several rural communities.
- 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: Ringlijn Target entity description: Ringlijn is the common name for Amsterdam Metro line 50, a rapid transit route that forms a partial ring around the city.
-
A.
Ringbahn
The Ringbahn is Berlin’s circular urban rail line that encircles the inner city and serves as a major hub for the Berlin S-Bahn network.
-
B.
Gribskov Line
The Gribskov Line is a Danish regional railway line in North Zealand that connects Hillerød with several coastal and rural towns, serving as an important local transport route and tourist line.
-
C.
Bridge Line
Bridge Line was a former rapid transit service in the Philadelphia–Camden area that operated across the Benjamin Franklin Bridge before being replaced and expanded by the PATCO Speedline.
-
D.
Tarka Line
The Tarka Line is a scenic rural railway route in Devon, England, running between Exeter and Barnstaple through the countryside associated with Henry Williamson’s novel "Tarka the Otter."
-
E.
Marshlink Line
The Marshlink Line is a regional railway route in Southeast England that runs across the Romney Marsh, connecting Ashford International with Hastings and serving several rural communities.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport route ⓘ rapid transit line ⓘ |
| cityServed | Amsterdam NERFINISHED ⓘ |
| colourOnMap | green ⓘ |
| commonName | Ringlijn NERFINISHED ⓘ |
| connectsWith |
Amsterdam Metro line 51
NERFINISHED
ⓘ
Amsterdam Metro line 52 NERFINISHED ⓘ Amsterdam Metro line 53 NERFINISHED ⓘ Amsterdam Metro line 54 NERFINISHED ⓘ |
| country | Netherlands ⓘ |
| electrification | 750 V DC third rail ⓘ |
| endStation | Gein metro station NERFINISHED ⓘ |
| forms | partial ring around Amsterdam ⓘ |
| hasCharacter |
partially at grade
ⓘ
partially elevated ⓘ partially underground ⓘ |
| hasStation |
Amstelveenseweg metro station
NERFINISHED
ⓘ
Bijlmer ArenA metro station NERFINISHED ⓘ Bullewijk metro station NERFINISHED ⓘ Duivendrecht metro station NERFINISHED ⓘ Gein metro station NERFINISHED ⓘ Heemstedestraat metro station NERFINISHED ⓘ Henk Sneevlietweg metro station NERFINISHED ⓘ Holendrecht metro station NERFINISHED ⓘ Isolatorweg metro station NERFINISHED ⓘ Lelylaan metro station NERFINISHED ⓘ Overamstel metro station NERFINISHED ⓘ RAI metro station NERFINISHED ⓘ Reigersbos metro station NERFINISHED ⓘ Sloterdijk metro station NERFINISHED ⓘ Strandvliet metro station NERFINISHED ⓘ Van der Madeweg metro station NERFINISHED ⓘ Zuid metro station ⓘ |
| lineNumber | 50 ⓘ |
| locatedIn |
Amsterdam
ⓘ
Netherlands ⓘ North Holland ⓘ |
| officialName | Amsterdam Metro line 50 NERFINISHED ⓘ |
| opened | 1997 ⓘ |
| openingDate | 1997-06-01 ⓘ |
| operator | GVB NERFINISHED ⓘ |
| partOf | Amsterdam Metro NERFINISHED ⓘ |
| region | Randstad NERFINISHED ⓘ |
| serviceType | rapid transit ⓘ |
| startStation | Isolatorweg metro station NERFINISHED ⓘ |
| system | Amsterdam Metro NERFINISHED ⓘ |
| terminus |
Gein metro station
NERFINISHED
ⓘ
Isolatorweg metro station NERFINISHED ⓘ |
| trackGauge |
1435 mm
ⓘ
standard gauge ⓘ |
| transportMode | metro ⓘ |
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: Ringlijn Description of subject: Ringlijn is the common name for Amsterdam Metro line 50, a rapid transit route that forms a partial ring around the city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.