M4 line
E323792
The M4 line is a rapid transit route within the Ankara Metro system serving passengers in Turkey’s capital city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M4 line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2986827 — 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: M4 line Context triple: [Ankara Metro, hasLine, M4 line]
-
A.
M1 line
The M1 line is a primary rapid transit route of the Ankara Metro system serving key districts of Turkey’s capital city.
-
B.
M3 line
The M3 line is a rapid transit route within the Ankara Metro system serving parts of Turkey’s capital city.
-
C.
M2 line
The M2 line is a major rapid transit route within the Ankara Metro system in Turkey, serving key districts of the capital city.
-
D.
S4 line
The S4 line is a route of the Rhine-Main S-Bahn network serving the Frankfurt metropolitan area, including central hubs such as Frankfurt Hauptwache.
-
E.
Metro Line 4
Metro Line 4 is a rapid transit route within a city's metro system that connects with other lines, including Metro Line 6, to facilitate passenger transfers across the network.
- 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: M4 line Target entity description: The M4 line is a rapid transit route within the Ankara Metro system serving passengers in Turkey’s capital city.
-
A.
M1 line
The M1 line is a primary rapid transit route of the Ankara Metro system serving key districts of Turkey’s capital city.
-
B.
M3 line
The M3 line is a rapid transit route within the Ankara Metro system serving parts of Turkey’s capital city.
-
C.
M2 line
The M2 line is a major rapid transit route within the Ankara Metro system in Turkey, serving key districts of the capital city.
-
D.
S4 line
The S4 line is a route of the Rhine-Main S-Bahn network serving the Frankfurt metropolitan area, including central hubs such as Frankfurt Hauptwache.
-
E.
Metro Line 4
Metro Line 4 is a rapid transit route within a city's metro system that connects with other lines, including Metro Line 6, to facilitate passenger transfers across the network.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
rapid transit line ⓘ |
| connectsWith | other Ankara Metro lines ⓘ |
| electrification | overhead line ⓘ |
| fareSystem | Ankara public transport fare system ⓘ |
| hasAccessibility |
local residents
ⓘ
urban commuters ⓘ visitors to Ankara ⓘ |
| hasLocale | Turkey’s capital city ⓘ |
| hasPrimaryFunction | urban passenger transport ⓘ |
| hasRollingStockType | electric multiple unit trains ⓘ |
| hasServiceType |
rapid transit passenger service
ⓘ
urban rail transit ⓘ |
| hasTrackGauge | standard gauge ⓘ |
| hasTransportModeCategory | rail-based urban transit ⓘ |
| isFixedGuideway | true ⓘ |
| isInMetropolitanArea |
Ankara metropolitan area
ⓘ
linked to:
Ankara
|
| isPartOfTransportSystem | Ankara public transportation network ⓘ |
| isPassengerService | true ⓘ |
| isRailInfrastructure | true ⓘ |
| locatedIn | Ankara ⓘ |
| locatedInCountry | Turkey ⓘ |
| network |
Ankara urban rail network
ⓘ
linked to:
Ankara Metro
|
| operator | EGO General Directorate ⓘ |
| owner | Ankara Metropolitan Municipality ⓘ |
| partOf | Ankara Metro ⓘ |
| publicTransportMode | metro ⓘ |
| serves | Ankara ⓘ |
| systemType | rapid transit ⓘ |
| usesPropulsion | electric traction ⓘ |
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: M4 line Description of subject: The M4 line is a rapid transit route within the Ankara Metro system serving passengers in Turkey’s capital city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.