M18 line
E671913
The M18 line is a rapid transit route within the Istanbul Metro system serving passengers across parts of the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M18 line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7175662 — 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: M18 line Context triple: [Istanbul Metro, hasLine, M18 line]
-
A.
M8 line
The M8 line is a rapid transit route within the Istanbul Metro system that serves as one of the city’s key urban rail corridors.
-
B.
M14 line
The M14 line is a metro line within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
C.
M11 line
The M11 line is a rapid transit route of the Istanbul Metro system that connects the city center with Istanbul Airport and other northern districts.
-
D.
M16 line
The M16 line is a rapid transit route within the Istanbul Metro system that serves passengers in Turkey’s largest city.
-
E.
M17 line
The M17 line is a rapid transit route within the Istanbul Metro system serving passengers in Turkey’s largest 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: M18 line Target entity description: The M18 line is a rapid transit route within the Istanbul Metro system serving passengers across parts of the city.
-
A.
M8 line
The M8 line is a rapid transit route within the Istanbul Metro system that serves as one of the city’s key urban rail corridors.
-
B.
M14 line
The M14 line is a metro line within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
C.
M11 line
The M11 line is a rapid transit route of the Istanbul Metro system that connects the city center with Istanbul Airport and other northern districts.
-
D.
M16 line
The M16 line is a rapid transit route within the Istanbul Metro system that serves passengers in Turkey’s largest city.
-
E.
M17 line
The M17 line is a rapid transit route within the Istanbul Metro system serving passengers in Turkey’s largest city.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
public transport route
ⓘ
rapid transit line ⓘ |
| connects | different districts of Istanbul ⓘ |
| country | Turkey ⓘ |
| fareSystem | Istanbul public transport fare system ⓘ |
| hasAccessibility | designed for urban passenger transport ⓘ |
| hasElectrification | electric ⓘ |
| hasLanguageOfSignage |
English
ⓘ
Turkish ⓘ |
| hasPassengerService | yes ⓘ |
| hasRightOfWay | grade-separated ⓘ |
| hasRouteType | metro route ⓘ |
| hasServiceType | urban rail ⓘ |
| isInMetropolitanArea |
Istanbul metropolitan area
ⓘ
linked to:
Greater Istanbul metropolitan area
|
| isNumbered | M18 ⓘ |
| isPartOfNetwork |
Istanbul urban rail network
ⓘ
linked to:
Istanbul tram network
|
| isPublicTransport | yes ⓘ |
| isSubjectOf | Istanbul public transport planning ⓘ |
| locatedIn |
Istanbul
ⓘ
Turkey ⓘ |
| operator | Metro Istanbul ⓘ |
| owner | Istanbul Metropolitan Municipality ⓘ |
| partOf | Istanbul Metro ⓘ |
| safetySystem | metro signalling system ⓘ |
| serves | passengers in Istanbul ⓘ |
| systemType | metro ⓘ |
| transportMode | rapid transit ⓘ |
| usesTicketingSystem | electronic fare cards ⓘ |
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: M18 line Description of subject: The M18 line is a rapid transit route within the Istanbul Metro system serving passengers across parts of the city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.